NFL's Geno Smith's Busting His Ass In Rehab After Bad Knee Injury

Geno Smith is battling through his ACL tear -- working his butt off to try to get back on the field next season ... just days after undergoing surgery.

The NY Jets QB went under the knife to repair his right knee on Nov. 9th after suffering the ACL tear while playing the Ravens on Oct. 23rd.

Just 3 days later he was already in physical therapy -- and today, one week later, he's still pushing himself.

Geno's a free agent after this season and he's most likely done with the Jets -- question is, where will he land next season?