Another two shots back came Tiger Woods, Kenny Perry and Scott Verplank. Woods shot a 70 and was never able to really make a move up the leaderboard. Perry picked up his second straight 69, while Verplank had a 68.
Woods, trying to win for the sixth time at Firestone, opened with a bogey and parred the last 10 holes.
"I didn't putt well today. I had a hard time getting the speed. I was leaving a lot of my putts short," he said after taking 28 putts. "They looked fast, but for some reason they putted a little bit slower than I thought they did yesterday. I just had a hard time making the adjustment."
Love, who has missed the cut in his last four PGA Tour starts, Chris DiMarco and Lee Westwood were tied for sixth at 139.
"It gets a little stressful that you can't get away with very much and you have to be right-on perfect," Love said. "You miss a fairway, you're hard-pressed to get it back on the green."
Sabbatini has a charmed two days and even he has felt that stress.
"I hit a couple more drives today in that thick hay they call rough here," he said. He added that "the fairways are rolling at a 14" on the stimpmeter.
No wonder everybody's expecting the scores to go higher and the crowd to thin out near the top.
"It's only going to get harder," said Stuart Appleby, echoing just about everybody else in the field. "Certainly, 10-under par will win this easy."