Groups we're watching: Round 2

All times are Eastern.

Charlie Wi, Eric Dugas, Louis Oosthuizen
Tee time: 7:30 a.m.
Tee: No. 1
Total TOUR wins: 0
Why you should watch: South Korea's Charlie Wi had an excellent first round with an outstanding score of even-par 70. Wi's best finish this season was a tie for fourth at the John Deere Classic, but he does have eight other top-25 finishes. Can he keep it going in his first PGA Championship? It was a struggle for Eric Dugas on Thursday. The PGA Professional from Brewster, Mass., shot a 17-over 87. Friday has got to be better. South Africa's Louis Oosthuizen shot 6 over in the first round, and will look to turn it around on Friday.

Bart Bryant, Jeff Martin, Robert Karlsson
Tee time: 12:50 p.m.
Tee: No. 10
Total TOUR wins: 3
Why you should watch: Bart Bryant and PGA Professional Jeff Martin will be in rough shape starting the second round. For the first 18 holes at Oakland Hills, the duo shot 7 over and 8 over, respectively. However, the third man in the threesome was tremendous. After starting the round with a double bogey at the very first hole, it didn't seem like Robert Karlsson was going to have much to be happy about. Rather than let the double bring him down, Karlsson proceeded to birdie five of his next seven holes -- no small feat at the course they call, "The Monster." When the dust settled on the first round, Karlsson signed his card for a 2-under 68 -- a stellar round for someone who started off so poorly.

Sergio Garcia, Anthony Kim, Camilo Villegas
Tee time: 1:25 p.m.
Tee: No. 1
Total TOUR wins: 9
Why you should watch: Three of the brightest young stars all together in one group -- in a major. What more could you ask for? Garcia and Kim are both proven winners on the PGA TOUR while Villegas is still looking for win No. 1. In Thursday's first round, Garcia fired a 1-under 69, Kim shot an even-par 70 and Villegas recorded a 4-over 74. They're all still very much in contention, even Villegas. Oakland Hills isn't going to offer a whole lot in the way of low scores, so these three, just like the rest of the field, are going to have to take what they can get. Par is your friend at the majors, but this threesome is the most electric trio on the course. Expect fireworks in round 2.