Wayne Rooney scored twice as Manchester United beat Roma 3-2 in their International Champions Cup opener in Denver on Saturday.
The England striker had netted a double in the 7-0 demolition of LA Galaxy in Louis van Gaal's first game as United boss in midweek and he was at it again as the Premier League side scored three goals in the space of 10 minutes at the end of the first half to stun the Serie A side.
United had looked vulnerable at the back with a three-man defence before Rooney opened the scoring with a sublime right-foot strike, and then set up Juan Mata for a superb second goal soon afterwards.
Rooney struck from the penalty spot to add the third - just as he did against the Galaxy - after Roma new boy Urby Emanuelson had upended Danny Welbeck in first-half stoppage time.
A packed crowd inside Sports Authority Field had been treated to two moments of sheer quality from Rooney and Mata for the opening goals, but there was even better to come after the break when Miralem Pjanic, once linked with United, pulled a goal back 15 minutes from time with an audacious lob from inside his own half, to leave United's substitute goalkeeper Ben Amos red-faced.
Francesco Totti pulled another goal back from the penalty spot with time running out, but United held on to make it two wins out of two for Van Gaal.
Roma had made a promising start as United looked uncertain with their new formation, playing three central defenders, and Mattia Destro almost caught them out when he raced onto a ball over the top and lobbed young goalkeeper Sam Johnstone, but the ball bounced down and over the crossbar.
Leandro Paredes then saw his free-kick deflected over the wall as United looked rattled and Alessandro Florenzi forced a save out of Johnstone with a left-footed strike from outside the penalty area after Destro had found space again.
It was United who took the lead with a goal out of nothing 10 minutes before the break, though, as Rooney was allowed too much time to line up a strike from 25 yards out that flashed into the far corner of the net.
The former Everton man then caught Roma out once again just over two minutes later when he picked out Mata with an incisive pass, the Spain midfielder finishing with a well-executed lob.
Rooney helped himself to a second goal on the stroke of half-time, sending the goalkeeper Lukasz Skorupski the wrong way from the spot after Emanuelson had brought down Welbeck.
Roma were left with a mountain to climb, but Pjanic had the crowd on their feet with a sensational strike 15 minutes from time as he spotted Amos off his line and lobbed him from inside his own half.
Leandro Castan hit a post late on and then veteran Totti pulled another goal back from the spot after Michael Keane had been penalised for handball, but United stood firm to secure the victory and open their Group A campaign with a win.
|Inter 3 Bologna 2: Candreva prevents remarkable turnaround in Coppa Italia thriller|
|FA Cup Review: Non-league Lincoln stun Ipswich, Burnley and Palace through|
|Gabon v Burkina Faso: Aubameyang says hosts have learned from Guinea-Bissau setback|
|Mali 0 Egypt 0: El-Hadary makes history in stalemate|
|El-Hadary oldest AFCON player ever - 44-year-old Egypt goalkeeper makes history|
|Reus and Gotze on target but Bender injured in Dortmund win|
|Toure shunning lavish China interest to stay at City, says Seluk|
|Rahman´s AFCON in the balance, says Ghana boss Grant|
|Just 14 goals conceded and nine clean sheets - How Vertonghen blow could impact Tottenham|
|Ghana 1 Uganda 0: Andre Ayew hands Black Stars nervy victory|
|Swansea snap up Carroll and Olsson in double swoop|
|All is forgiven? - Costa trains with full Chelsea squad after reported Conte bust-up|
|I would throw myself off a bridge for Luis Enrique - Rakitic dismisses Barca rift rumours|
|Was Juventus´ new logo inspired by tennis star?|
|Smooth sailing for Liverpool in Plymouth? Klopp expects tough test|
|Demichelis re-joins Malaga until end of season|
|Cameroon v Guinea-Bissau: Broos urges new heroes to emerge|
|Boxing champ hits Carragher with Chinese Super League comeback prank|
|Zidane backs Navas and defends Benzema as Madrid aim to bounce back|
|Deportivo bring in Kakuta from Hebei after CSL rule changes|
|Matip could miss eight games without doing anything wrong - Klopp|
|United trigger Valencia´s contract extension|
|Ronaldo returns to Real Madrid´s Copa squad|
|FA fine Sagna for Instagram post|
|Nedved does not foresee more January business for Juventus|
|Rafinha injury blow for Barcelona|
|Villas-Boas fumes at CSL foreign player crackdown|
|Ibrahimovic invaluable to Manchester United youngsters - Rashford|
|Robben rejected China move|
|A-League review: Phoenix rise to the occasion to end Victory´s streak|
|Van Gaal slams English media over treatment at Manchester United|
|Mignolet: Liverpool in better position to win title than in 2013-14|
|Giroud wants Premier League title but understands China temptations|
|Tianjin forced to scrap moves for Costa, Benzema, Cavani and Falcao|
|My goal was better than Mkhitaryan´s - Giroud|
|Pochettino not interested in Argentina job|
|Kane: Tottenham can win Premier League|
|Corinthians dreaming of Drogba - Paulo Roberto|
|Coutinho calls for Liverpool focus|
|Chiellini compares Pogba to LeBron and Bolt|
|Maradona to become Napoli ambassador|
|Mihajlovic furious after Torino collapse|
|Icardi has offers from China - Wanda Nara|
|Pogba can cope with pressure - Ibrahimovic|
|´My half-time words will stay in the dressing room´ - Montella annoyed with AC Milan|
|Juventus unveil dramatic change to club logo - but not everyone´s a fan|
|´I do not think I will return to coaching´ - Van Gaal set to call it quits|
|Torino 2 AC Milan 2: Bacca caps thrilling comeback as hosts pay the penalty|
|DR Congo 1 Morocco 0: Kabananga pounces on blunder to give 10 men the points|
|´Happy and comfortable´ Sanchez dismisses Arsenal exit talk|
|How much?! West Ham flop Simone Zaza could cost Valencia €20m|
|Mali v Egypt: Salah leads Pharaohs´ bid for AFCON glory|
|Sevilla concede they ´cannot force´ sporting director Monchi to stay|
|Ivory Coast 0 Togo 0: Reigning champions held to opening draw by Adebayor and co.|
|Goalkeeping woes, Stones and tactical confusion - How Guardiola is making life difficult for himself|
|Ozil and Sanchez can be persuaded to stay - Cech|
|Pogba: I rejected Barcelona and Real Madrid|
|Ghana v Uganda: Gyan dreams of first trophy since 1982|
|Chiellini: Juventus a work in progress|
|Robben agrees Bayern renewal until 2018|
|Hazard: Goals do not matter to me|
|Bennell pleads not guilty to eight child sex offences|
|Muller fed up with debate over Bayern role|
|Wenger glad Sanchez is not ´a Costa problem´|
|Flick resigns as DFB´s sporting director|
|Gomis ´can´t wait´ to welcome Payet to Marseille|
|Chinese FA changes foreign player rules after ´irrational´ spending|
|Like father, like son: Justin Kluivert follows in dad´s footsteps|
|´No reason to lose him´ - Marotta rubbishes talk of Allegri exit|
|Courtois: We don´t need Costa|
|Kane: Tottenham players won´t go to China|
|Noble ´angry and disappointed´ with Payet|
|Klopp furious over Matip uncertainty|
|Wenger surprised by tight Premier League|
|´Money is not everything´ - Conte issues warning amid China speculation|
|Fiorentina defeat a ´bad setback´ - Allegri|
|´This will elevate this group of players´ - Sampaoli revels in Sevilla late show|