Viktoria Plzen coach Pavel Vrba conceded his side have it all before them to surpass the UEFA Champions League group stages.
The 49-year-old saw his team give up an early lead in St Petersburg on Wednesday only to suffer defeat, leaving the Czech outfit without a point through two matches.
CSKA's home match was relocated from Moscow to St Petersburg after the Russian club's ground was rendered unplayable due to heavy rain.
Frantisek Rajtoral scored the opener for Plzen in the fourth minute but CSKA got back into the match thanks to two goals on the counter-attack from Zoran Tosic and Keisuke Honda.
A terrible own goal involving Plzen defender Radim Reznik and goalkeeper Matus Kozacik made it 3-1 for CSKA in the 78th minute and while Marek Bakos notched Plzen's second with a header in second-half stoppage time, Vrba was left to rue his team's missed opportunities in the first half.
"We started well and had two or three chances to score but we failed to take them," Vrba said.
"Then we conceded goals from situations which we had prepared for, because of mistakes with our passing.
"I must praise my players' efforts in the second half and for fighting until the end for a point but we made it hard for ourselves. The situation we are in now is very difficult."
Bayern Munich lead the group of six points from two victories, after they defeated Manchester City 3-1, while the English club and CSKA have three points apiece to sit clear of bottom-placed Plzen.
With four games to go in the group stage, Plzen will have to win at least two and pick up a point from another match to advance to the round-of-16.
While Vrba was disappointed his team wasted goal-scoring opportunities in Russia, he was thrilled with Plzen's response in the second half and thought they could have claimed a draw but for Reznik's own goal.
The right fullback's back pass with 12 minutes remaining looked easy for goalkeeper Kozacik to control but the Slovak gloveman let the ball slip under his foot and roll into the net, which effectively ended Plzen's chances of earning a point in St Petersburg.
"We still believed we could equalise but there was a third CSKA goal in a situation which cannot be predicted," Vrba said.
"Our second goal came too late.
"Sadly our own mistakes brought about the result."
|Coach: L. Slutsky|
for S. Zuber 64'
for R. Elm 73'
for A. Musa 89'
|Copa Libertadores success ´a dream´ for Borja|
|Pochettino honoured by Simeone comparisons|
|Argentina have not asked for Sampaoli - Monchi|
|Ancelotti: Fitness the key for Bayern|
|Bayern win ´a small foundation´ for Montella´s Milan|
|Icardi missing due to injury - Mancini|
|Emery satisfied with warm-up win over Madrid|
|Conte quiet on Tevez, apologises for Fabregas red|
|´It was far from a friendly´ - Klopp on Chelsea defeat|
|Madrid off the pace, concedes Zidane|
|Chelsea 1 Liverpool 0: Cahill´s header seals win|
|Grujic says Chelsea´s Matic told him to sign for Liverpool|
|Bolasie wants to see Berahino and Benteke at Crystal Palace|
|Rodgers hails ´outstanding result´ as Celtic draw|
|Walcott claims level of MLS is close to Premier League|
|Bayern Munich 3 AC Milan 3 (3-5 on penalties): Bonaventura seals win|
|Atletico Nacional 1 Independiente del Valle 0 (2-1 agg): Borja secures Copa Libertadores crown|
|Icardi absent again as Inter held by Estudiantes|
|Real Madrid 1 Paris Saint-Germain 3: Zidane oversees poor pre-season start|
|Hazard vows to rediscover best Chelsea form|
|Klopp reveals why he sent Sakho back to Liverpool|
|Tevez: Conte wanted me at Chelsea|
|Sunderland hopeful Defoe will be fit for Man City opener|
|Sundowns overcome Zamalek to book semi-final spot|
|Falcao scores as Monaco return ends in defeat to Fenerbahce|
|Southampton overcome Twente, Asoro stars for Sunderland|
|Man City must adapt to Guardiola tactics quickly - Denayer|
|Chelsea and Leicester to play in EFL Trophy as five Premier League clubs refuse|
|Tolisso pulls plug on €37.5m Napoli move to stay at Lyon|
|Ancelotti shrugging off Guardiola´s shadow|
|Uruguay international Lodeiro swaps Boca for Seattle|
|Ibrahimovic will bring United back to where they belong - Larsson|
|Transfer speculation frustrates Aubameyang|
|Willian ready for ´toughest Premier League season in history´|
|Astana 1 Celtic 1: Griffiths hits late equaliser|
|De Laurentiis feels betrayed by Higuain swapping Napoli for Juventus|
|Costa: Chelsea cannot be any worse than last season|
|Wilshere: Xhaka can hold Arsenal midfield together|
|Pato signs four-year deal with Villarreal|
|Higuain sets sights on Champions League after Juventus move|
|Lazio snap up Immobile from Sevilla|
|Batshuayi worth the money, insists Cahill|
|Arnautovic signs new Stoke deal|
|Smith leaves Liverpool for Bournemouth|
|Barcelona insist Arda Turan will stay|
|Andre Gomes: Barcelona suit my identity better than Real Madrid|
|Niersbach to appeal FIFA ban|
|Barcelona agree Mascherano renewal|
|Fernandinho can play in 10 positions - Guardiola|
|Reading´s kit launch is out of this world|
|Ben Arfa: I do not want to be PSG´s star player|
|FA Cup to trial fourth substitute|
|We want Balotelli and he wants us, says Besiktas chief|
|Crowd welcomes Higuain as he arrives for Juventus medical|
|Guardiola warns Man City stars: If you´re not fit, danger is coming|
|Mkhitaryan prepares to prove himself at United|
|Cavani: No pressure replacing Ibrahimovic|
|Wenger vows to keep transfer plans ´secret´ after Lacazette snub|
|Brannagan open to Championship loan move|
|Wenger wants to sign Mertesacker replacement|
|Ancelotti: Bayern´s transfer business done|
|Brisbane Roar sign former Danish international Kristensen|
|Verratti, Luiz missing for PSG|
|Sounders part ways with foundation coach Schmid|
|Mane turned down Manchester United for Liverpool|
|Zidane on Pogba: Until August 31, anything can happen|
|Mkhitaryan driven by father´s death|
|Inter rejected Napoli offer for Icardi, says president|
|Clichy: City fighting fit after Guardiola pizza ban|
|Everton and Burnley win as Hull are held|
|Ajax held by PAOK after Cillessen howler|
|Conte left frustrated by ´crazy´ money in transfer market|
|Neymar makes Barcelona case to Gabriel Jesus|
|Rostov comeback twice for Champions League draw with Anderlecht.|
|Arsenal defender Mertesacker set for lengthy lay-off|
|Conte not selling ´fantastic´ Matic|
|Ibrahimovic keen on MLS and Beckham´s Miami project|
|Neymar: I play for Messi, he´s the man|
|Barcelona reveal details of Andre Gomes deal|
|Suarez bullish over Barcelona prospects|
|Ajax claim Napoli keen on Milik to replace Higuain|
|Totti labels Higuain´s Juventus move ´a disaster´|
|Juventus confirm Higuain deal|
|Pato to Villarreal ´in the final stage´|
|PSG sign Lo Celso|
|Muller: Beating Dortmund will be more fun this season|
|Juventus sign Higuain from Napoli for €90m|
|Pastore: I´m like God in Paris|
|Injured Lanzini out of Olympics|
|Allegri unperturbed by Higuain fee|
|Menezes replaces Bento at Cruzeiro|
|Sporting rejected major bids from Inter and Liverpool for Joao Mario, claims father|
|Pochettino pleased by Tottenham despite Juventus defeat|
|Eriksson: Allardyce the right man for England|
|Mourinho makes United train after stepping off plane from China|
|Hazard can still match Messi, says Pedro|
|Pjanic shows there is life at Juve, with or without Pogba|
|Juventus 2 Tottenham 1: Benatia bags win for Serie A champions|
|Dembele: I am not the Bundesliga´s next superstar|
|Lyon claim €35m Arsenal offer for Lacazette rejected|
|Donnarumma dreaming of Milan captaincy as he eyes long-term stay|
|Robson: Ibrahimovic can match Van Persie´s first year at United|
|Rooney should remain England captain - Eriksson|
|Emery wants new striker at PSG|
|Santos accept Juventus bid for Gabriel|
|Eriksson expects Sweden to try and tempt Ibrahimovic out of retirement|
|Spurs signing Janssen almost quit|
|Leicester stay best for Mahrez - Ranieri|
|Allardyce to take Mourinho cue on Rooney|
|Ings ready to outdo big-money signings|
|Henderson optimistic over Liverpool campaign|
|Allardyce hardened to the challenge of England post|