Former Vol Rhyne Williams started off his road at the Winnetka (Ill.) Challenger with an upset against a familiar opponent Monday.
Williams took a big lead and moved onto the second round when fifth-seeded Rik De Voest of South Africa retired with illness when the Knoxville native was ahead 6-1, 3-1.
Williams and De Voest had faced each other twice in the second half of 2011, with Williams winning in the US Open qualifying and the veteran De Voest winning at the Knoxville Challenger.
John-Patrick Smith joined Williams and former All-American Tennys Sandgren in the main draw of singles. He broke Fritz Wolmarans to end both sets in a 7-5, 7-5 win in the final round of qualifying.
In doubles, Smith is seeded No. 1 seed with fellow Australian John Peers. The two have won three Challenger titles this year and both are ranked in the top 160.