According to WEEI 850 in Boston, Keith Foulke is shutting it down for the season due to physical issues.
WEEI reports he has also already left the team. The Red Sox may attempt to trade him this winter, although his value is so diminshed at this point that it probably wouldn't be worth it. Foulke is certainly capable of bouncing back, but he needs to get his knee issues taken care of once and for all. Sep. 22 - 2:04 pm et
I must say I'm pretty surprised. Timlin's job is safe then.