An indignant two-time Tour de France champion Alberto Contador said on Tuesday he "totally disagreed" with his two-year doping ban and vowed to pursue his career at the highest level.

"I am going to continue cycling. I am going to continue practicing it cleanly, the way I have my entire life," he told a news conference at a hotel in his hometown of Pinto just south of Madrid.

Borussia Dortmund coach Jurgen Klopp admitted he was far from happy the German league leaders had to play in sub-zero temperatures in their 4-0 German Cup quarter-final win at minnows Holstein Kiel.

"It was like ice hockey on grass," fumed Klopp as the live-screened match went ahead even though the pitch at Kiel's Holstein Stadion ground was partly frozen amidst temperatures of minus 18 Celsius.

Novak Djokovic won the top individual honor at the 2012 Laureus Sports Awards on Monday, and Barcelona captured the team prize.

The top-ranked Djokovic won sportsman of the year at the ceremony in London, one week after the Serbian triumphed at the Australian Open to become the fifth man in the Open era to win three Grand Slam titles in a row.

AC Milan's Swedish international striker Zlatan Ibrahimovic will miss the top of the table clash with Serie A leaders Juventus on February 25 after he was suspended for three matches on Monday.

The volatile 30-year-old - who has scored 15 times this season and lies second in the Serie A scorers list - received the ban for slapping Napoli player Salvatore Aronica in the face during Sunday's 0-0 draw for which he was red carded.

Lotus F1 on Monday unveiled their new E20 with a Renault engine at the Jerez circuit in southern Spain with new driver tandem Kimi Raikkonen, the Finnish former world champion, and Frenchman Romain Grosjean hoping to push for honors this season.

"The 2011 season was a difficult one as we lost our best driver (Pole Robert Kubica, seriously injured in a rally in Italy)," said team principal Eric Boullier.

The New York Knicks beat Utah 99-88 despite the absence of grieving Amare Stoudemire and an injury to Carmelo Anthony.

Stoudemire left the team Monday to be with his family in Florida, where his elder brother Hazell was killed in a road accident early in the day.

The Court of Arbitration for Sport (CAS) on Monday suspended Spanish cyclist Alberto Contador for two years for a doping offence he committed during the 2010 Tour de France, officials said.

The suspension, which runs through to August 6, 2012, means that Contador is stripped of his victory in the race that year and will be unable to take part in this year's edition.

Juventus and AC Milan each played to scoreless draws Sunday as the top of Serie A remained unchanged, but Milan standout Zlatan Ibrahimovic was sent off for hitting an opponent and could face a multi-game ban.

In the 64th minute of Milan's match with Napoli, Ibrahimovic slapped his right hand on the side of Salvatore Aronica's face.

Wayne Rooney believes Manchester United's three-goal comeback against Chelsea could prove decisive in the Premier League title race, even though the champions lost ground on leaders Manchester City after a dramatic 3-3 draw at Stamford Bridge.

Sir Alex Ferguson's side now sit two points adrift of City, who beat Fulham 24 hours before the six-goal thriller in west London on Sunday.

Bayern Munich were held to a 1-1 draw at Hamburg on Saturday night to allow defending champions Borussia Dortmund to finish the weekend back on top of the German league.

In a tight title race, Bayern, Dotmund and Schalke all went into the weekend on 40 points, but Dortmund's 2-0 win at Nuremberg on Friday night puts them two points clear after their rivals failed to claim victories.