Jordan Spieth has turned it around since his Thursday 71, playing his way to the top of the leaderboard with a career-best 61 in Round 3 at the John Deere. Can he continue his dominance of TPC Deere Run, or will someone come from behind to take the trophy. Follow the @GolfCentral Twitter handle starting at 1:40PM ET to find out:
Spieth Tracker: John Deere Classic, Round 4
