The Cubs have claimed left-hander Cole Hamels off revocable trade waivers from the Phillies, Jon Heyman of CBSSports.com has confirmed. Mike Missanelli of 97.5 the Fanatic first reported the claim.

One of three things will happen now:

The Phillies pull Hamels back off trade waivers and keep him.
The Phillies award Hamels to the Cubs and simply give him away from nothing. That won't happen.
The Phillies and Cubs work out a trade within 48 hours, before he must be pulled back or awarded.

Here's a primer on how August trade waivers work, if you're unfamiliar. If the Phillies pull Hamels back, they will not be able to trade him until the offseason unless they pass him through irrevocable trade waivers, meaning he can not be pulled back if claimed.

Hamels, 30, is 6-6 with a 2.42 ERA and a 1.11 WHIP in 20 starts and 137 1/3 innings this year. He missed the start of the season with a minor shoulder issue. Hamels had a 3.13 ERA while averaging 215 innings per year from 2010-13.