Phil Mickelson will need to mount a sizable comeback over the next three days to contend at the 2016 PGA Championship after posting a one-over 71 in Thursday's first round at Baltusrol Golf Club in Springfield, New Jersey.
It's a frustrating start for the 46-year-old American star. Not only is he coming off a second-place finish in the British Open in his last start, but he also earned his only PGA Championship triumph on this very course in 2005.
Let's check out how Lefty's opening round played out Thursday:
Phil Mickelson at the 2016 PGA Championship: Round 1
| Hole | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | IN |
| Par | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 5 | 5 | 36 |
| Score | 5 | 4 | 3 | 4 | 4 | 4 | 4 | 5 | 6 | 39 |
| Total | +1 | +1 | +1 | +1 | +1 | +1 | +2 | +2 | +3 | - |
| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | OUT |
| Par | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 34 |
| Score | 4 | 5 | 3 | 3 | 4 | 3 | 3 | 4 | 3 | 32 |
| Total | +3 | +4 | +3 | +3 | +3 | +2 | +1 | +1 | +1 | - |
And here's an updated look at the tournament leaderboard on Day 1:
Mickelson is less than two weeks removed from his memorable Sunday duel with Henrik Stenson at the Open Championship, which resulted in the Swede earning his first major title.