06/08/2012 01:17 EDT | Updated 08/07/2012 05:12 EDT

5 stories, including Aron Winter's discontent

The revolving door of Toronto FC's coaches continues to spin, Jamaican sprinter Usain Bolt and a handful of Canadian athletes had a strong day in Oslo, Maria Sharapova is a win away from reclaiming her throne, plus more in your top five stories from Thursday.

1. Toronto FC hopes coach No. 7 brings better luck. Aron Winter stepped down as the club's head coach and technical director and was replaced by Paul Mariner, the team's director of player development. Mariner will be TFC's seventh bench boss in just six seasons. Winter leaves the club with seven wins in 44 matches under his tenure, including an 0-9 start to the 2012 season.

2. The Toronto Blue Jays failed to complete a sweep in Chicago after the White Sox came up with a 4-3 walk-off win. Orlando Hudson singled in the winning run with two outs in the ninth inning. The Jays continue their road trip Friday in Atlanta.

3. Lebron James and the Miami Heat pushed the NBA East Finals to seven games after their 98-79 victory over the Boston Celtics. James saved the Heat from elimination by putting up 45 points and 15 rebounds.

4. It was an eventful day at a Diamond League meet in Oslo as Usain Bolt bested Asafa Powell by 0.06 seconds in the men's 100 metres. Canadians were not left out of the action, with Toronto's Justyn Warner finishing fourth in the race. Meanwhile, defending Diamond League champion Dylan Armstrong, of Kamloops, B.C., came in second in the men's shot put while Priscilla Lopes-Schliep, from Whitby, Ont., finished fourth in the women's 100-metre hurdles event.

5. Maria Sharapova is on top of the world again. After a long road to recovery from shoulder surgery in 2008, Sharapova retains the No. 1 ranking after defeating No. 4 seed Petra Kvitova in the semi-finals of the French Open. The second-seeded Russian will take on 21st-seeded Sara Errani of Italy for the title Saturday.