Washington took a 7-0 lead in the first quarter when DeAngelo Hall intercepted a Matthew Stafford pass and returned it 17 yards for a touchdown. Detroit tied it on the next possession, when Joique Bell capped an 85-yard drive with a 12-yard TD run. Early in the second quarter, Stafford hit tight end Joseph Fauria with a 5-yard TD pass, putting the Lions up 14-7. A 72-yard Redskins scoring drive was punctuated by an Alfred Morris 30-yard TD run, knotting the score at 14-14. Near the end of the first half, David Akers connected on a 32-yard field goal, sending the Lions to the locker room with a 17-14 lead. The only score of the third quarter came on a John Potter 43-yard field goal, tying the score again at 17-17.  The Lions went up 20-17 early in the fourth quarter on a 28-yard field goal from Akers. The Redskins appeared to take the lead on a 57-yard TD pass from Robert Griffin III to Aldrick Robinson, but the play was reversed when replays revealed that Robinson did not maintain possession of the ball when he tumbled to the ground. The Lions took advantage on their next drive, when Stafford hit Calvin Johnson with an 11-yard TD pass, increasing the lead to 27-17. The Redskins got a late 21-yard field goal from John Potter to close the gap to 27-20, but could not gain possession on the ensuing onside kickoff.  Matthew Stafford passed for 385 yards and two touchdowns on the day.  Nate Burleson led all receivers with 116 yards, while Calvin Johnson tallied 115 receiving yards. Prior to this victory, the Lions had never won a game in Washington, D.C., covering 21 road meetings against the Redskins.  They last beat the Redskins on the road in 1935, when the team resided in Boston.
Question: What was the only score in the third quarter?
Answer: John Potter 43-yard field goal