Week 13 was particularly brutal on the injury front. A.J. Green will undergo season-ending surgery on his toe, while Matt Breida has already been ruled out for Week 14 after aggravating his ankle injury. In the fantasy world, the biggest injury may have occurred late in the Steelers’ 33-30 loss to the Chargers on Sunday night, and that’s where we start in the Week 14 version of the SI.com Training Room. As always, we’ll give you the injury nuts and bolts, provided by 4for4’s Russell Manalastas, a physical therapist and strength coach based in New York, and the fantasy spin to go with them.