The Redbirds will now face off against top seeded Wichita State in the semifinals (13-10, 8-0 MVC).
Abello only has one loss to a conference opponent during both the fall and spring this season and also won a MVC Individuals championship during the fall.
As the only senior, Youngberg will play her final match at Illinois State's Gregory Street Tennis Courts against Drake.
Marx defeated Rebecca Pedrazzi, 6-4, 7-6 after Abello defeated Lucia Kovalova, 6-4, 6-3 earning the only points for the team on the day.
The win at Evansville is important for the Redbirds who are just 4-9 on the road this season. The team is also coming off a tough loss to Southern Illinois on Saturday, 6-1.
2011-12/sophomore at Illinois State: Posted an overall record of 4-6 in singles play... went 1-0 in MVC doubles matches, paired with Ariane Maack.
2010-11/freshman at Illinois State : Captured the No. 7 singles title at the 2010 MVC Individual Championships ... finished 6-4 overall in singles competition ... went 12-16 in doubles matches, including a 4-5 mark in the Valley.
Prior to ISU: Attended Buffalo Grove High School in Buffalo Grove, Ill. ... won a doubles sectional championship and placed sixth in the state with her twin sister, Ashton, as a partner ... the pair also won a conference title and placed second in the state in badminton as seniors ... awarded the Tom Pitchford Sportsmanship Award ... named all-conference and all-area in basketball as a senior.
Personal: Born September 1, 1991 ... daughter of George and Cynthia Nisbet ... has a twin sister, Ashton, who is also a member of the ISU women's tennis team, and a brother, Ryan ... majoring in physical education.