Paul Casey only has one PGA Tour win to his credit, but he's in position to add to that total at the Deutsche Bank Championship. Here's how things look entering the final round at TPC Boston, where the Englishman leads by three shots:
Leaderboard: Paul Casey (-15), Brian Harman (-12), Kevin Chappell (-11), Smylie Kaufman (-11), Jimmy Walker (-11), Ryan Moore (-10)
What it means: Casey began the day one shot behind Chappell, but he moved to the top of the standings with his third straight round of 5-under 66 that included a tap-in eagle on the final hole. Seven years removed from his lone Tour title, Casey is now in prime position to end his victory drought while three of his closest competitors - Harman, Chappell and Kaufman - have combined for two career wins on the PGA Tour.
Round of the day: Louis Oosthuizen made the day's biggest move, carding a bogey-free 64 that vaulted him into the top 10. Oosthuizen birdied four straight holes from Nos. 2-5, then added three more on his inward half. After beginning the second round near the cut line, the South African is now tied for seventh at 9 under, six shots behind Casey.
Best of the rest: Scott Brown barely snuck into this week's field at No. 98 in the FedEx Cup race, but a third-round 65 gave him a chance to play his way into the top 70 for next week's BMW Championship. Brown birdied three of his first five holes and made it around TPC Boston without dropping a shot. At 7 under, he's tied for 20th and now projected to No. 72 in the points race.
Biggest disappointment: Walker began the day one shot off the lead, but the PGA champion faltered out of the gates en route to a 1-under 70. Walker bogeyed two of his first three holes before making the turn in 1-over 37, and despite a closing birdie he now trails Casey by four shots heading into the final round.
Main storyline heading into Monday: After a stirring close to his third round, Casey is officially the player to watch. His choice to rescind his European Tour membership meant the Englishman wasn't eligible for a European Ryder Cup pick earlier this week, but a victory Monday would vault him toward the top of the FedEx Cup race and lend great validation to his decision to focus his efforts on the PGA Tour.
Shot of the day: Rory McIlroy authored one of the day's biggest highlights when he nearly holed out for an albatross on the par-5 18th hole. McIlroy's final approach from 209 yards trickled toward the hole and lipped out, setting up a kick-in eagle that closed out a 5-under 66 to move McIlroy into a tie for seventh.
Quote of the day: "There's a reason I live in Arizona, to avoid that kind of stuff." - Casey on a weather forecast that calls for inclement conditions and high winds for Monday's finale.