ORLANDO, Fla. — Rafa Cabrera Bello had a Bay Hill debut to remember with a 7-under 65 for a two-shot lead while playing with Arnold Palmer’s grandson.

The entertainment, as usual, came from Phil Mickelson.

Back at the Arnold Palmer Invitational for the first time in six years, Mickelson capped off a wild round by nearly holing his approach from the 18th fairway for his seventh birdie on a round that will be remembered more for the shot Lefty tried to play right-handed.

Thanks to the new Rules of Golf, it could have been worse.

Mickelson, who won at Bay Hill in 1997, was cruising along until his tee shot on the 10th hole went well to the left and settled under a mesh fence that was out-of-bounds, with just enough of the ball inside the stakes that he could try to play it.

Of course, he did.

Standing on the other side of the fence, his best play was to invert a 9-iron and try to smash it right-handed through the mesh netting.

He looked up toward the green and was surprised to see the ball a few feet in front of him. By hitting the mesh fence, it rolled up and snagged the ball, which eventually spit out of the fence and this time landed out-of-bounds.

The old rule would have meant hitting his next shot from the same spot under the fence.