Eagle sends Keith Mitchell to the top of the Valspar Championship

Keith Mitchell will take a two-shot lead into the final day of the Valspar Championship in Miami.

The American shot to the top of the leaderboard after shooting a round of 66, leaving him 10 under par for the tournament and two shots in front of the trailing pack of Seamus Power, Mackenzie Hughes and Peter Malnati.

Mitchell's day did not get off to the start he wanted as he bogeyed three of the front nine, albeit mixed with two birdies, but a sensational comeback homeward nine put him in pole position heading into day four.

Mitchell's birdie on hole 12 shifted him into gear and further birdies on holes 14, 16 and 17 set him up for a fantastic eagle on the last to rocket him to the top of the pile.

"When I looked up, something kind of flew in my eye, so I kind of looked away and never saw it come down and land," he said of the eagle, which was a 7-iron from 151 yards out. 

"But I knew... when I hit it, I was pleased with the contact."

Power and Malnati shot 68 and overnight co-leader Hughes 69 to share second on eight under. Chandler Phillips, Cameron Young and Brendon Todd are one shot further back on seven under for the championship.

"No matter how well you played, it was going to be tough to get much better than 4-, 5-under, I thought," Power said. 

"It's tough to get away from the pack, so it's going to be some guys in with a chance."