Fluminense remain in danger of relegation from Brazil's Serie A following their seventh loss in 11 matches.
Santos defeated Fluminense 1-0 on Sunday to keep the 2012 Serie A champions on 42 points and just a spot above the relegation zone, as Coritiba and Vasco da Gama both made significant ground on Dorival Junior's team.
Coritiba snagged a point with a scoreless draw away to Internacional to sit behind Fluminense on games won, while Vasco moved up to 41 points with an impressive 2-1 victory over recently crowned champions Cruzeiro.
Santos overcame Fluminense with a well-worked goal in the 65th minute with Thiago Ribeiro tapping in Arouca's low cross.
In Rio de Janeiro on Saturday, Thalles Lima opened the scoring for Vasco after just two minutes before Edmilson doubled the home side's lead in the 33rd minute.
While Paulao pulled a goal back for Cruzeiro in the second half, the visitors were unable to avoid their first defeat in six matches, while Vasco gave their chances of Serie A survival a significant boost.
With two rounds remaining, Criciuma (43 points), Portuguesa (44) and Bahia (45) could also be dragged into the relegation battle.
Coritiba face the toughest finish to the Brazilian league season of the six teams between 13th and 18th on the table.
The Parana-based club have games against top-10 clubs Botafogo and Sao Paulo, while Vasco take on bottom-placed side Nautico plus second-placed Atletico Paranaense and Fluminense must play Atletico Mineiro (sixth) and Bahia (13th).
Criciuma face Sao Paulo and Botafogo, Portuguesa take on Ponte Preta and Gremio, while Bahia visit Cruzeiro before hosting Fluminense in the final round.
At the other end of the table, Atletico PR moved into the Copa Libertadores positions with a 6-1 thrashing of Nautico.
Atletico PR moved to 61 points and into second spot as Gremio slipped to third following a 1-1 draw away to Ponte Preta and Goias fell to fourth - which only sends a club into the qualifying rounds of the Copa Libertadores - after they lost 4-1 to Atletico Mineiro.
In other results, Criciuma drew 1-1 with Vitoria, Flamengo defeated Corinthians 1-0, Sao Paulo drew 1-1 with Botafogo and Bahia defeated Portuguesa 1-0.
|Coach: Claudinei Oliveira|
for Alison 22'
for E. Mena 64'
for Cicinho 82'
|Inter confirm Montoya capture|
|Murillo joins Inter, as Kuzmanovic and Obi depart|
|Falcao signing not a risk, says former Chelsea star|
|Deeney agrees new Watford deal|
|Confidence and service the key to Falcao success at Chelsea|
|No bids for ´Chelsea target´ Baba, claim Augsburg|
|Derby swoop for Ince|
|Fiorentina consider legal action over Salah ´no-show´|
|Chelsea the team to beat in the Premier League, says Neville|
|Storari exits Juve for Cagliari|
|UEFA removes FFP restrictions on Man City and PSG|
|West Brom hope for new owners within the month|
|Chelsea agree loan deal for Falcao|
|Kuyt eyes trophies on Feyenoord return|
|Chile v Argentina: History beckons ahead of Copa America final|
|Wallace extends Monaco loan|
|Mihajlovic wants to instill fear factor at Milan|
|Mignolet improving at Liverpool - Grobbelaar|
|Mumbai City name Anelka player-manager|
|Olivia the parrot predicts Japan to win Women´s World Cup|
|Lusitans coach blasts Bilic´s ´lack of respect´|
|Sakho eyes more Europa League wins|
|Gareca wants Peru to keep building|
|Chile ´no chance´ if Argentina produce their best - Diaz|
|Ocampos joins Marseille permanently|
|Europa League Review: Cloud-nine Brondby ignite opening round|
|West Ham 3 Lusitans 0: Sakho nets twice at start of Europa League journey|
|Holebas makes Watford move|
|Milan secure Adriano signing|
|Peru v Paraguay: Diaz counts cost of semi-final loss|
|Bastia hit out at reports of extra debt|
|Hernandez has successful surgery|
|Odemwingie signs one-year Stoke extension|
|Uth signs for Hoffenheim|
|Henen seals Everton return|
|Cattermole pens long-term Sunderland deal|
|United States v Guatemala: Klinsmann backs Dempsey ahead of Gold Cup warm-up|
|West Ham working on Jenkinson return - Gold|
|Milan agree deal for Bacca|
|Real buy back Vazquez from Espanyol|
|Richards leaves Swansea for Fulham|
|McShane signs for Reading|
|Giggs tells youngsters to seize US chance|
|Hammond pens Leicester extension|
|Only Schweinsteiger can decide Bayern future - Guardiola|
|Cech plans to play until he´s 40|
|Montoya arrives in Milan ahead of Inter move|
|Hernandez out of Gold Cup|
|US asks Switzerland to extradite seven FIFA officials|
|MLS Preview: Sounders seek momentum switch|
|Mexico 0 Honduras 0: Hernandez injury sours friendly|
|Hernandez taken to hospital|
|Garay in doubt for Copa America final|
|Wambach: USA peaking for World Cup final|
|Bassett ´an absolute hero´ despite own goal - Sampson|
|Japan 2 England 1: Late own goal breaks English hearts|
|Salvo quits as Valencia president|
|Costa not Ribery cover - Bayern director Sammer|
|Chile, Argentina deserve final spots - Mena|
|Ramos keen on United switch - Calderon|
|B36 1 The New Saints 2: Wilde leaves it late to secure advantage|
|Sevilla agree deal for Rami|
|Celtic snap up United teenager Janko|
|Beauvue passes Lyon medical|
|Roma bring in Falque|
|Coates completes permanent Sunderland switch|
|Vallecano to make charity donations from shirt sales|
|Angella commits to Watford|
|Gundogan pens new Dortmund deal|
|Juve reject €80million Barca offer for Pogba, says Marotta|
|Ruiz seals permanent Villarreal move|
|Mourinho respects Cech´s decision to quit Chelsea|
|Claridge excited by potential Pearson successors|
|Miranda completes Inter switch|
|Blind takes over as Netherlands coach|
|Mourinho: Premier League tougher to win than ever|
|Hamburg make Holtby move permanent|
|Southampton terminate Osvaldo contract|
|BREAKING NEWS: Swansea swoop for Eder|
|Abbiati extends Milan stay|
|Cruyff: Barcelona have lost their values|
|Vydra seals Watford move|
|Ambitious Clyne targets trophy haul with Liverpool|
|Claridge: Off-field incidents cost Pearson his job|
|Clyne becomes Liverpool´s sixth close-season signing|
|Imbula leaves Marseille for Porto|
|FIFA chief Blatter challenges critics to prove corruption claims|
|Distin joins Bournemouth|
|Bayern seal Costa deal|
|Arsenal confirm Diaby departure|
|Blatter to miss Women´s World Cup final|
|Bogdan sets sights on being Liverpool number one|
|Danilo eager to get started at Real Madrid|
|Leicester´s Wood joins Leeds|
|Porto confirm Atletico move for Martinez|
|Lloyd: Repetition key to netting penalty|
|Sheffield Wednesday job a ´dream´ for Carvalhal|
|´We played a complete game´ - Messi|
|Diaz upbeat despite heavy Copa loss to Argentina|
|Martino lauds Messi for selfless performance|
|Viviani makes surprise Verona switch|
|Estonian team wins cup match 31-0|
|No meeting with Arsenal has occurred - Vidal´s agent|
|United States 2 Germany 0: Ellis´ team reach World Cup final|
|Argentina 6 Paraguay 1: Messi leads Martino´s men to Copa final|
|UEFA Europa League Review: FK Zeljeznicar and FC Dacia Chisinau open with wins|
|UEFA Champions League Review: FC Pyunik make winning start|