SCOTTSDALE, Ariz. — Today at the Waste Management Phoenix Open, I'll be watching for more low scores because it looks like another perfect day in the making. Check it out on Golf Channel later—you'll wish you were here. Here are the people I'll have my eye on in round 2: Camilo Villegas. It's an axiom in golf that it's always difficult to follow a really low round with another good one. Villegas shot an easy 62 in the first round. He looked extremely sharp last week in the WGC-Accenture Match Play Championship, losing only an overtime match to Paul Casey, and he picked up where he left off yesterday. With his power, there's no reason to think he won't play well again. It's too early to say he's the guy to beat this week but… he may be the guy to beat this week. Phil Mickelson. A 68 wouldn't sound bad normally except that left him six shots behind Villegas and tied for 29th. It's a home game for Lefty, who played college golf at Arizona State, so he's got a big following. But he needs to gain a little ground and get into position for the weekend. Rickie Fowler. After a week off, the cool rookie from Oklahoma State looks ready to rumble and finally start holing some putts, except when he chips in, which he did twice in the opening round en route to a 65. Expect him to stay in the mix to the end. Noise. The famed 16th hole was pretty tame Thursday. But this is Friday, as in T.G.I.F., so look for a larger, more enthusiastic and better-lubricated crowd.