The two were so competitive last season that Tim, knowing Matt was starting himself in Week 2 last season, made an on-air wish that Matt would suffer an injury. Tim was joking, of course, but Hasselbeck did suffer a painful rib injury that game, affecting his season.
I'm guessing Tim will hold off making any similar quips this season. Perhaps he could settle for a poor individual performance from his brother in a Seahawks victory.
Mike & Mike also touched on the 2010 Seahawks. Good stuff here.