Scottie Scheffler, 18, Dallas, Texas

vs. Corey Conners, 22, Listowel, Ontario, Canada.

Tee Time 11:20 a.m.

Comment: An early meeting of young players who made themselves known in last year's Amateur. Conners was a semifinalist, Scheffler a quarterfinalist. An incoming freshman at Texas, Scheffler played in the PGA Tour's Byron Nelson Classic this year and finished tied for 22nd.

Chris Waters, 27, Atlanta

vs. Bo Andrews, 24, Raleigh, N.C.

Tee Time 12:10 p.m

Comment: The first clash between Bulldog (Waters) and Yellow Jacket (Andrews) in this Amateur. Both are grads. Andrews was not a player in his college days, so this is his first big chance to participate in the rivalry.

Ollie Schniederjans, 21, Powder Springs

vs. Matt Teesdale, 23, Maple Glen, Pa.

Tee Time 10:50 a.m.

Comment: Georgia Tech's Schniederjans is the world's No. 1-ranked amateur, but in his third U.S. Amateur is looking for his first match-play victory. Teesdale is a senior player at Temple, a relatively late-comer to golf (age 15) in his first U.S. Am.