Byline: Emerson Fittipaldi
The 2010 formula one season-opener in Bahrain marks the return of perhaps the greatest athlete to ever compete in the sport: after a three-year retirement Michael Schumacher, the former Ferrari star and seven-time world champion, has joined the Mercedes GP team at the age of 41. He will face a slew of new rules designed to keep the sport's skyrocketing costs under control and compete against great drivers roughly half his age, such as 22-year-old Red Bull star Sebastian Vettel. Other top contenders include Vettel's teammate, Mark Webber; two-time world champion Fernando Alonso, now with Ferrari; Alonso's teammate Felipe Massa; and the McLaren team, …