Angels' Kole Calhoun: Will undergo surgery Tuesday

The Angels announced that Calhoun will undergo surgery Tuesday to repair a bilateral core muscle injury.

Analysis:

The origin of Calhoun's setback is uncertain, as he was not held out of any late-season action -- other than for the birth of his child -- and actually had his best month of the season in September. No matter, he will need 6-to-8 weeks tor recover from Tuesday's procedure. The Angels expect him to resume his "normal offseason training regime" following his recovery period, and barring any setbacks, he is expected to be back at 100 percent when spring training begins next February.