SIU enters the regional tournament with an overall singles record of 32-18
Opieczonek played four seasons for the Salukis from 2011-15.
SIU wraps up the regular season at 6-15 overall and 0-3 in MVC play.
The SIU men's tennis team will play conference rival Illinois State University for fifth place on Sunday.
Freshmen duo Ransom Braaten and Daniel Martinez earn their third straight doubles match victory.
Opieczonek joins the coaching staff as a student assistant following a four-year career as a player on the men's tennis team.
Opieczonek is one of SIU's most winning doubles players in program history. His 51 doubles wins is good for second all-time at SIU. His two-season doubles partnership with Jorge Cavero was also a successful one. The duo won a total of 28 matches from 2012-14 putting them in fifth place on the all-time wins list for doubles teams at SIU. In 2014 the tandem won 17 matches which is tied for seventh most in a single season at SIU.
As a singles player Opieczonek racked up 26 wins. He enjoyed his most successful season in singles play as a junior when he finished 11-17.
Went 7-19 overall in singles play, 5-15 during the dual-match season... Was 10-14 overall in doubles play... Finished the season 8-7 with doubles partner Jonny Rigby...
Went 11-17 overall in singles play, 8-10 in the dual-match season...Finished the season with the second most doubles wins with Jorge Cavero, going 17-11 overall.
Finished singles play with a record of 3-4 and a doubles record of 13-9 with partners Jorge Cavero and Orhan Spahic...Held second most doubles wins in the No. 2 position with Jorge Cavero.
Went 5-10 in singles in the dual-match season (5-16 overall) in his first season as a Saluki, predominately at No. 6 singles...Secured Saluki victory against Bradley on April 21 (W, 4-3) with a 7-6 (5). 1-6, 6-4 victory over BU's Michael Davis at No. 6 singles...Had a team-best 9-7 record in doubles on the dual-match season with partner Orhan Spahic and Nos. 2 and 3 doubles.
Personal: Majoring in Finance...Son of Yarek and Lidia Opieczonek...Has three sisters: Natalia (20), Agata (14) and Karolina (14).