Reuters Sports News Summary

Following is a summary of current sports news briefs.

Chinese investors looking to postpone closing of AC Milan deal

The Chinese buyers that committed to the acquisition of prized Italian soccer club AC Milan are looking to further postpone the closing of the deal, two sources close to the matter told Reuters on Tuesday. The accord, valuing the club at 740 million euros ($788 million) including 220 million euros of debt, was originally supposed to close at the end of last year but was then pushed to March 3 as the Chinese buyers struggled to get final approval from Beijing.

Motor racing: Williams wrap up early after Stroll takes a spin

Lance Stroll's official Formula One test debut with Williams lasted 12 laps on Tuesday before the Canadian rookie spun off and damaged the car, forcing Williams to shut up shop before lunchtime. Brazilian veteran Felipe Massa had managed 103 laps on Monday's opening day in the same car.

Phelps urges U.S. lawmakers to push for anti-doping reform

Michael Phelps urged U.S. lawmakers on Tuesday to push for a reform of the global anti-doping effort in sport after a career in which the Olympic great said he was never confident he was competing against clean athletes. Testifying in front of the U.S. House of Representatives Committee on Energy and Finance, the most decorated Olympian expressed his frustration at the lack of progress in the battle against the use of performance enhancing drugs in sport.

Raikkonen puts Ferrari on top after test day two

Kimi Raikkonen put Ferrari on top of the timesheets after the second day of Formula One's pre-season testing on Tuesday but world champions Mercedes still led the way on kilometers covered. Raikkonen was a mere 0.023 faster than triple champion Lewis Hamilton at the end of the day, although the Briton got out at lunchtime and handed his Mercedes to new team mate Valtteri Bottas.

Tennis: Wawrinka suffers early defeat in Dubai

World number three Stan Wawrinka fell at the first hurdle in the Dubai Open on Tuesday, beaten 7-6(4) 6-3 by 77th-ranked Bosnian Damir Dzumhur. "I was not good enough," Swiss Wawrinka, playing his first match since losing to Roger Federer in the Australian Open semi-finals, said. "I started well but it was a tough match. It was his day."

Former FIFA secretary general Valcke appeals 10-year soccer ban

Former FIFA secretary general Jerome Valcke has appealed to the Court of Arbitration for Sport against his 10-year ban from soccer, the tribunal said on Tuesday. The Frenchman, whose job was to ensure the smooth running of FIFA and in particular its flagship World Cup tournament, was right-hand man to now banned president Sepp Blatter before both were embroiled in a corruption scandal which swept soccer's governing body in 2015.

Alonso needs to fall back in love with F1, says Sainz

Carlos Sainz has plenty of ambitions of his own for 2017 but the young Spaniard also hopes to see friend and compatriot Fernando Alonso fall back in love with Formula One after years of frustration. The 22-year-old, starting his third season with Toro Rosso, knows how important a year it is for the double world champion he first met as a young karter when the now 35-year-old was winning with Renault.

Cycling: Discussion on reducing peloton size still ongoing - Tour boss

Tour de France director Christian Prudhomme said on Tuesday that discussions on reducing the number of riders per team in grand tours were still ongoing. In November, Tour organizers ASO, who also own the Tour of Spain (Vuelta), as well as Giro d'Italia owners RCS and Tour of Flanders organizers Flanders Classics said grand tours would feature eight instead of nine riders per teams.

Cycling: Riders association calls for more safety tests on disc brakes

Riders' union the Professional Cyclists Association (CPA) is threatening legal action against world governing body the UCI over its ongoing trial of disc brakes. Fears that the brakes, a sharp-edged exposed disc, could cause serious injuries prompted the CPA to call for further tests before they are allowed to be trialled in more races.

Vikings decline 2017 option on Adrian Peterson

Adrian Peterson's days with the Minnesota Vikings might be over. On Tuesday, the Vikings announced they would not exercise the seven-time Pro Bowl running back's contract option for the 2017 season. Peterson will become an unrestricted free agent when the new league year begins on March 9.