Complex sentence: Defending champion Tom Watson was a co-leader after 54 holes, but four consecutive bogeys on the front nine led to a 76 (+4), six strokes back in a tie for 14th place.
Split into simpler sentences: Defending champion Tom Watson was a co-leader after 54 holes, but four consecutive bogeys on the front nine led to a 76 (+4). Watson finished six strokes back in a tie for 14th place.