Eagles quarterback Carson Wentz underwent ACL surgery Wednesday in Pittsburgh, a source close to the situation said. His surgeon, chosen by Wentz's agent group, was Steelers orthopedist James P. Bradley, who also is a professor at the University of Pittsburgh School of Medicine.

No further update is yet available. Wentz was placed on injured reserve Tuesday, two days after his left leg buckled while he was straining to reach the end zone for a touchdown, a score that would be negated by penalty, during the third quarter of the Eagles' victory over the Los Angeles Rams.

Wentz posted a picture on social media after the surgery.

Generally, NFL orthopedists forecast a nine-to-12-month recovery period for ACL surgeries, though it is not uncommon for players to return more quickly.