As Tiger Woods has progressed through the Masters tournament, it's become clear how much of a valiant effort he is putting in to just walk the 4.27-mile course day after day.Woods posted his worst score of the tournament Saturday, 78, and sits at +7 after Day 3, tied for 41st among the 52-man field.The return of Tiger has been great for the golfing world, but it seems to be taking its toll on his right leg/ankle. The daily barometer has been Hogan's bridge on the par-3 12th hole, said Dr. David Chao, an orthopedic surgeon with medical experience in the PGA Tour. “Woods has clearly been more labored with each progressive round, especially when walking downhill,” Chao said. “He also seems to be using the golf club as a cane more often in the third round.”The 46-year-old posted a -1 in the first round and battled his way to a +2 in the second round, rebounding after 4 bogeys in the first 5 holes.He started his Saturday with a +3 on the front nine, then finished with a +3 on the back nine. Woods also had his first double bogey of the Masters on the 5th hole and again on the 18th. The 5-time Masters champion has been one of the more volatile players remaining on the course: he is one of 10 golfers to post double-digit birdies and bogeys, with 10 birdies, 13 bogeys, and 2 doubles to his name this weekend. Woods also ranks 45th among the golfers by hitting 53.7% of his greens in regulation.While he is clearly not 100%, Woods has performed better than expected in his return from solo car wreck in the late February 2021. He is more than capable of posting good scores at Augusta, where he's found repeated success in his storied career. But this Masters tournament has belonged to Scottie Scheffler, who sat 18 shots clear of Woods at -11 when Tiger finished 18.