Wallace, a 6-foot-1, 190 pound righthanded reliever, unheralded out of high school, became a star at UConn. By his junior year, 2019, he was touching 100 MPH on the radar gun, and putting hitters away with his slider. He was 3-1 with 16 saves and an 0.64 ERA, with 68 strikeouts and only 10 walks in 42 innings. With the Huskies facing elimination in the NCAA Regional at Oklahoma City, Wallace struck out all seven Oklahoma batters he faced to nail down the win. The next day, he retired all eight he faced, striking out five, but Oklahoma had pushed the winning runs across before he came in.