Tommy Fleetwood gained momentum with a four-under 66, putting the defending champion back in contention at the Tour Championship at East Lake in Atlanta. That round makes Fleetwood a clear figure to watch as the event unfolds, forcing rivals to reassess the challenge he poses.

The tournament sits with Lee at the top of the leaderboard, a position that now attracts renewed scrutiny. Fleetwood's return to the mix raises the stakes for Lee, who must contend with a former winner finding form at a venue where history and current performance meet. The interplay between a leader and a defending champion will shape how the closing stages are approached by several players.

Fleetwood's four-under performance offers both a scoreboard and psychological lift, the kind of round that changes pairings and game plans. For a player carrying the tag of defending champion, moving into contention restores the immediate possibility of repeating, while also shifting pressure onto those ahead. Lee's lead is therefore more exposed, even if the specifics of the margin are not given here.

For spectators and rivals at East Lake in Atlanta, the outcome is now less predictable. A defending champion in contention broadens the field of plausible winners and concentrates attention on matchups deeper in the draw. How players respond to Fleetwood's round will matter as much as the scores themselves, because momentum and course management will decide who sustains a run toward the title.

The tournament continues at East Lake, with both Fleetwood and Lee carrying distinct claims to watch. Attention will turn to how the leaderboard evolves and which contenders can convert mid-tournament form into a closing charge for the championship.