According to the Los Angeles Times, outfielder Mike Trout is in negotiations for a contract extension with the Angels. Though baseball’s luxury-tax rules mean any deal likely would not be announced until after Opening Day, if and when the day arrives, it could very well give Trout the largest contract of any player in professional sports. The largest deal to date is the 10-year, $275 million one Alex Rodriguez signed with the Yankees before the 2008 season — after A-Rod opted out of the second largest deal to date. Salaries in baseball have inflated since Rodriguez signed his deal, and Trout at age 22 is a way better bet to maintain his excellence for another decade than Rodriguez was at 32. The only reason Trout won’t blow past A-Rod whenever he signs an extension is that the Angels still control him through arbitration through the 2017 seasonl