Wrenn split time last season the Billings Mustangs (Pioneer - Rookie) and the Dayton Dragons (Midwest - A) hitting .285 overall with 15 RBI. He had a pair of four-hit games on the season, July 22 against Orem and August 4 against Great Falls. The right-handed hitter had two multi-hit games in three contests with Dayton on September 2 and 3 at West Michigan.
He was Cincinnati’s 27th round selection in the 2011 draft after finishing up his final season at the University of Tampa where Wrenn hit .341 with a homer and 18 RBI in 21 games. In 2010 he hit .258 with a homer and eight RBI for the University of Southern California. Wrenn spent the 2009 season at the State University of Florida, Manatee-Sarasota where he batted .386 in 49 games with seven homers and 59 driven in.