Ruben Sierra suffered a pretty serious injury:

Minnesota Twins reserve Ruben Sierra is expected to miss several months with a ruptured biceps tendon near his left elbow.

The 40-year-old Sierra had an MRI test before Monday night's game against Seattle. He was placed on the 15-day disabled list Sunday after hurting himself the day before while swinging at a pitch.

Although the story says he'll return this season, I have to wonder. First of all, he's been a poor offensive player the last three seasons. Missing a few months of the season at this point doesn't seem like the way to improve things. This may actually be a blessing for the Twins if they can find someone who can hit to DH.