Former world number one Tiger Woods lamented an "awful" short game after carding an opening five-over-par 77 on his much-anticipated comeback at the Hero World Challenge.
The 38-year-old has been out since failing to make the cut at the PGA Championship in August, having struggled to get back into shape following surgery on a pinched nerve in his back earlier in the year.
The 14-time major winner returned at the Hero World Challenge - the tournament he annually hosts which benefits his foundation, on his home course of Isleworth in Florida.
However, Woods struggled badly, with four bogeys, one double bogey and a birdie seeing him occupy last place in the 18-man field.
"It was weird. I didn't feel like I hit it that bad. My short game was awful, and I didn't make anything," he said.
"It was just one of those days where nothing went my way.
"I hit a lot of good shots and I got nothing out of it, obviously.
"Bad chips, bad putts and a couple of missed shots on the front nine on the wrong side really compounded the problem.
"I hit terrible chips - that's something I need to work on when I get home. It certainly is surprising that I could hit chips that poorly."
Woods needed three chips to reach the green at the par-five 13th, and also had trouble at the eighth and 17th holes.
"I just flubbed them," he said. "I felt comfortable on a lot of the chip shots this week as I was playing practice rounds off the tighter spots. But when it got a little grainier, it just wasn't as good as I needed it to be."
At the other end of the spectrum, Jordan Spieth was leading the way at six under as he looked to build on last week's Australian Open victory. The 21-year-old was one shot ahead of Zach Johnson, Steve Stricker, Rickie Fowler and Henrik Stenson.
"Right now, I'm 11 back and possibly, probably more than that the way Jordan is playing," Woods added.
"I've got three more days, and if I can get to under par for the tournament after tomorrow and then hopefully put together a really good weekend, (I'll try to) at least get myself back in there somehow."
Graeme McDowell carded a four-under par 68 in his opening round to leave him two behind Spieth.
At the Indonesian Open in Jakarta, play was suspended due to lightning today but after 12 holes Pádraig Harrington was level with clubhouse leader Thanyakon Khrongpha of Thailand, with both of them on 12 under par. The Dubliner was five under in his second round, starting off with an eagle on the first.
Three-time major winner Harrington Harrigton made eight birdies as he shot 64 yesterday.
In South Africa, Ross Fisher was sitting two shots clear at the top of the leaderboard after an impressive first day at the Nedbank Golf Challenge.
Beginning the 2015 Race to Dubai in style, the 34-year-old Englishman completed a six-under-par 66, dropping just one shot in the first round.
That fine start gave Fisher daylight to South Africa's George Coetzee, Marcel Siem of Germany and Frenchman Alexander Levy, who all shot 68s, at the Gary Player Country Club in Sun City.
Shane Lowry was six off Fisher's lead going into the second round after he carded a 72 in Sun City Ireland's Lowry endured a turbulent front nine before he turned in 38, but he steadied himself from the 10th and carded birdies at 15 and 17 to come home on level par.
The Offaly man got off to a bad start today, having a bogey and a douuble bogey on his first three holes.