GREEN BAY, Wis. — The Packers fear tight end Tucker Kraft tore his ACL during Sunday’s 16-13 loss to the Carolina Panthers, a source told ESPN.

Kraft, the Packers’ top pass catcher, suffered the injury in the third quarter and was ruled out of the game in the fourth.

He is set to undergo additional testing Monday, according to Packers coach Matt LaFleur, who said the injury “does not look good” but declined to offer any specifics beyond that.

First-round pick Matthew Golden also was ruled out of Sunday’s game after suffering a shoulder injury in the third quarter.

Kraft appeared to injure his right knee during a collision while blocking on a running play. The tight end was carted to the locker room after being examined on the sideline.

The third-year pro was coming off his best career game with seven catches for 143 yards and two touchdowns. He came into Sunday’s game leading the Packers in catches (30), receiving yards (469) and touchdown catches (six). He had two catches for 20 yards against the Panthers before his injury.

Golden, a rookie wide receiver, had two catches for 9 yards before exiting.

The Packers also finished the game without starting left guard Aaron Banks, who suffered a stinger in the first half. Defensive tackle Colby Wooden (shoulder) also did not finish the game.