Cam Newton threw a 1-yard touchdown pass to tight end Greg Olsen with 1:22 remaining as the Carolina Panthers completed the biggest comeback in franchise history to defeat the host Philadelphia Eagles 21-17 on Sunday afternoon.The Panthers (4-2) were dominated for the first three quarters before scoring three touchdowns in a 9 1/2-minute span after punting on all their other possessions. They trailed 17-0, but had never overcome more than a 10-point hole in the fourth quarter.Philadelphia’s final possession ended at the Carolina 14-yard line on a failed fourth down.Trailing 17-14, the Panthers gained possession at their own 31 with 2:17 to play. Three incompletions later, they faced fourth down but Newton, while under heavy pressure, hooked up with ex-Eagle Torrey Smith for a 35-yard play.Newton finished 25-for-39 for 289 yards and two touchdown passes.Carson Wentz threw two touchdown passes and directed the Eagles (3-4) on time-consuming drives that appeared to put them in ideal shape.Wentz completed 30 of 37 passes for 310 yards. He had a stretch when he completed a career-best 15 consecutive passes.Wentz threw an 11-yard touchdown strike to Alshon Jeffery to open the scoring in the second quarter. The Eagles went up 10-0 on Jake Elliott’s 46-yard field goal less than five minutes later.The Eagles drove 94 yards on 17 plays in the third quarter. Wentz’s fourth-and-1 sneak at the Carolina 2-yard line kept the drive alive. Two plays later, his 1-yard toss to tight end Dallas Goedert helped Philadelphia extend the lead to 17-0.