According to reports out of Philadelphia, Red Sox pitcher Bartolo Colon has been placed on the disabled list with a stiff lower back. He hurt his back Monday while swinging the bat.

Reliever Chris Smith was called up to replace Colon. Smith, a longtime member of the Sea Dogs, has been dominating out of the pen in Pawtucket.

This is Smith's second call-up. He joined the Red Sox for a few days in May, but did not get in a game (He was warming up during the May 19th game, but Jon Lester went a threw a no-hitter).

It is not likely Smith will stay long.

Smith could be sent down Saturday when Daisuke Matsuzaka is expected to be activated from the DL (assuming the Red Sox keep Justin Masterson in the rotation, in Colon's absence).

Here are tonight's Red Sox and Sea Dogs lineups:

RED SOX
Julio Lugo, SS
Dustin Pedroia, 2B
J.D. Drew, RF
Manny Ramirez, LF
Mike Lowell, 3B
Jason Varitek, C
Sean Casey, 1B
Coco Crisp, CF
(Jon Lester, P)

SEA DOGS
Bubba Bell, CF
Tony Granadillo, 2B
Jeff Corsaletti, LF
Sandy Madera, DH
Aaron Bates, 1B
Mark Wagner, C
Mickey Hall, RF
Ryan Khoury, 3B
Iggy Suarez, SS
(Matt Goodson, P)

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