KEY BISCAYNE, Fla. — The LSU men’s tennis team won three singles matches and one doubles contest Monday on the second day of the Key Biscayne Collegiate Invitational.

Chris Simpson posted an upset of Texas’ 98th-ranked Nick Naumann 7-6(8), 6-3. Mark Bowtell held off Texas’ Ben Chen 7-6 (5), 3-6, 6-3, and Boris Arias captured a three-set win against Texas’ Jacoby Lewis 7-6 (5), 1-6, 6-3.

In doubles, Roger Anderson and Tam Trinh combined to give LSU its first doubles win of the tournament with an 8-3 victory over Michigan’s Vlad Stefan and Barrett Franks.

Trinh lost 6-7 (8), 6-3, 6-3 to Texas’ Andrew Korinck, and Anderson fell to No. 43 Daniel Whitehead 7-6 (8), 6-1. Stefan Szacinski dropped his match to Sadanwa Sitaram 6-2, 6-4, and Joe Hill lost 6-4, 6-2 to Alex Hilliard. Harrison Kennedy fell 7-6 (5), 7-6 (5) to Joey Swaysland.In doubles, No. 33 Simpson and Szacinski lost 8-5 to Michigan’s Evan King and Alex Buzzi. Hill and Arias fell 8-7 (5) to Michigan’s Alex Petrone and Michael Zhu.

Track and field

MEN ADD TWO: As the LSU track and field teams prepare to kick off the indoor season with a trip to Birmingham, Ala., on Saturday to compete in the Crimson Tide Indoor Opener, coach Dennis Shaver announced the addition of two members to the men’s team.

Sophomore hurdler Joshua Thompson transferred from Pittsburgh, and freshman jumper Fitzroy Dunkley signed a National Letter of Intent. Both are eligible to compete this season.

At Pittsburgh, Thompson set personal records of 7.79 in the 60-meter hurdles as the Big East bronze medalist during the indoor season and 13.80 in the 110-meter hurdles as an NCAA semifinalist during the outdoor season. He earned international experience during the summer at the IAAF World Junior Championships in Barcelona, Spain.

In Dunkley, the Tigers welcome a talented jumps prospect from Jamaica College who is set to compete in the high jump, long jump and triple jump.