LOS ANGELES — Two sources familiar with the injury tell The Associated Press that doctors believe Philadelphia Eagles quarterback Carson Wentz tore his left anterior cruciate ligament in a win over the Rams on Sunday and will miss the rest of the season and playoffs.
"I don't know anything until we evaluate him (Monday)," Eagles coach Doug Pederson said.
Wentz was hurt late in the third quarter of Philadelphia's 43-35 comeback win at Los Angeles . Backup Nick Foles rallied the Eagles (11-2) to a win that secured the NFC East title and put them in first place in the conference with three games remaining.
"Everyone is really excited about the win but you have your starting quarterback go down, it's emotional," Foles said. "It's emotional for me. I work with him every day so I'm dealing with that."
Wentz was hit hard as he scrambled into the end zone on a play that was called back because of holding. He stayed in the game and threw a 3-yard touchdown pass to Alshon Jeffery four plays later , setting the franchise record for most TD passes in a season with 33.
"It shows how tough he is," Pederson said.
Foles replaced Wentz the next drive after the Rams took a 35-31 lead. He led the Eagles to a pair of field goals on consecutive drives. Second-year pro Nate Sudfeld is Philadelphia's No. 3 quarterback.
Wentz arrived in Philadelphia as the No. 2 pick in the 2016 draft out of North Dakota State. On Sunday, he dueled with Rams quarterback Jared Goff, the No. 1 pick in that draft.
After starting all 16 games as a rookie, Wentz made a giant leap this season. He passed for 3,296 yards and only seven interceptions to go with those 33 TDs.
Despite the injury, Wentz stayed in the locker room to greet teammates after the victory over the Rams (9-4).
After the game, Wentz's left knee was wrapped in a brace. He was driven in a cart up the tunnel at the Los Angeles Memorial Coliseum and then hobbled to one of the team buses
"He's one of the leaders on the team. He was there congratulating and celebrating with everyone," Foles said.
Foles, a third-round pick by former Eagles coach Andy Reid in 2012, is in his second stint in Philadelphia. He replaced an injured Michael Vick in 2013 and led the Eagles to an NFC East title during Chip Kelly's first season as coach. Foles tied an NFL record with seven TD passes in a game at Oakland in November 2013 and finished that season with 27 TDs and only two picks. The Eagles lost at home to New Orleans in the playoffs. Foles went to the Pro Bowl and was the offensive MVP.
But Kelly traded Foles to St. Louis for Sam Bradford after the 2014 season. Foles spent a year with the Rams, a season with the Chiefs and returned to Philadelphia as a free agent this season.
"I'm absolutely ready to go — need be," Foles said. "I prepare every day."
AP Pro Football Writer Rob Maaddi contributed to this report from Philadelphia.
For more NFL coverage: http://pro32.ap.org and https://twitter.com/AP_NFL