On a pivotal moment on lap two, he was given a 'drive-through' penalty after an incident with Ferrari's Rubens Barrichello.
Michael Schumacher of Germany, driving a Ferrari, has won the San Marino Formula One Grand Prix.
Rubens Barrichello was 0.128 slower than Montoya in second place, while Schumacher was third with 1:20.784.
The Ferrari driver is one point ahead of Williams's Juan Pablo Montoya and two clear of McLaren's Kimi Raikkonen with two races remaining after Monza.\n\n
Kerala Blasters missed a crucial second-half penalty kick and had to settle for a 1-1 draw against rivals Chennaiyin FC in the Hero Indian Super League football, in Kochi, on Saturday.
David Coulthard grabbed second place for McLaren, ahead of Jarno Trulli and Fernando Alonso in the two Renaults.
"Sergio Aguero will be assessed by Club doctors today after being involved in a road accident on Thursday," City said of the Argentina striker in a statement on their website. (www.mancity.com)
FIFA president Gianni Infantino, whose election promises included expanding the World Cup finals to 40 countries, on Monday proposed an even larger tournament involving 48 teams.
Williams's Formula One championship challenge is on after they ousted McLaren as Ferrari's closest rivals.
Second-seed Lleyton Hewitt moved into the quarter-finals of the Washington Open with a routine 6-3 6-2 win over Colombian Alejandro Falla on Wednesday.
The six-times world champion was 0.362 of a second quicker than Colombian Juan Pablo Montoya's Williams.
Montoya was black-flagged after 57 of the 73 laps and retired in the pits while third.
The Colombian will race for McLaren in 2005 after completing his contract with Williams.
Argentina will return to Olympic football next year after sealing victory in the South American under-20 qualifying tournament in Uruguay on Saturday.
Federico Montoya will drive for the Berlin-based Muecke team in the German Formula BMW series next year.
The Scot is looking for a drive after McLaren signed Colombian Juan Pablo Montoya from Williams for 2005.
The German won a wet and wild US Grand Prix while Colombian rival Juan Pablo Montoya's title hopes were blown away.
Ferrari's Michael Schumacher can win a record sixth Formula One championship at Indianapolis on Sunday if circumstances go his way.
The defending F1 champion expects the title to be decided by a last-race duel between himself and the Colombian.
The German world champion now has 82 points to second-placed Montoya's 79.
Ferrari's ace is resigned to the idea of his younger brother helping the Colombian become world champion at his expense.
IMAGES from Day 7 of the French Open, at Roland Garros, on Saturday.
A Colombian doctor who treated controversial Argentine soccer legend Diego Maradona for weight loss last year was nabbed at an international airport on Wednesday with nearly 2 kilos of cocaine packed in his bags, police said.
The Colombian had a blistering late lap to outpace his German team mate at Williams Ralf Schumacher.
Chief Williams engineer Sam Michael said it was clear the team had some catching up to do but it was not all doom and gloom.
England forward Jamie Vardy is "looking doubtful" for the World Cup quarter-final against Sweden on Saturday after suffering a groin strain having come on as a late substitute in the last-16 win over Colombia, manager Gareth Southgate has said.
Argentina can look forward to a mouthwatering Copa America semi-final clash with Brazil after delivering a much-improved display to beat Venezuela 2-0 in the quarter-finals in their first game at the Maracana since losing the 2014 World Cup final.
