Explore the venues for the 2011 Formula 1 season with BBC Sport's interactive map of the 20 circuits. On the map below, click a photo thumbnail to view a relevant video and find out more about the ...

Big racquets have bigger 'sweet spots' but are harder to control. A 'sweet spot' is the area in the middle of the strings which gives the cleanest hit. A mid-size racquet has a hitting area of about ...

Goran Ivanisevic took his first title at the fourth attempt with a pulsating five-set win over Pat Rafter. Rain delays meant this was the first time a final had begun on the third Monday, and gave ...

This rule is the most unique skill of rugby league that makes it so different from rugby union. Each team is allowed six tackles. If they have not scored during their six tackles, the ball goes back ...