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LSU head coach Paul Mainieri signals the bullpen to bring in a new pitcher in a game against South Alabama, Tuesday, May 9, 2017, at LSU's Alex Box Stadium in Baton Rouge, La.

Who: Northwestern State (20-30) at LSU (35-17)

When: 6:30 p.m.

Where: Alex Box Stadium

TV: none

Online: SECN+

Radio: WDGL-FM 98.1; WWL-AM, 870

Rankings: LSU is ranked No. 10 by Baseball America, Northwestern State is unranked

Tuesday’s likely starters

LSU — Fr. RHP Todd Peterson (2-1, 4.39 ERA, 26.2 IP, 13 BB, 13 K)

NWST — So. RHP Kyle Swanson (2-2, 5.20 ERA, 36.1 IP, 15 BB, 22 K)

What to watch for: LSU has had its share of struggles in some midweek contests this season. The Tigers enter their last regular season non-conference game needing a win to stay above .500 for the season in midweek games, in which they are currently 7-6. The issue? While everyone wants to direct blame at teh lineup, there has been some inconsistent pitching performances against midweek competition. When LSU has pitched well in midweek games, it has generally won. Its pitching line in the seven games its won in midweek is as follows: 63 IP, 1.57 ERA, 39 H, 21 BB, 70 K. But in the midweek games LSU has lost, its pitching has been on the complete opposite end of the spectrum: 57 IP, 7.11 ERA, 63 H, 35 BB, 55 K. The opponents deserve some credit for knocking LSU pitching around in those games, but the concerning number is the walks allowed by the staff in games LSU has lost.

On the Demons: This has been a challenging season for Northwestern State. It lost 23 of its first 33 games and enters Tuesday’s contest with the third worst RPI among Louisiana college baseball teams (226, ahead of only ULM and Southern). The Demons are hitting just .244 as a team and have a staff ERA nearing 6. This is not to say Northwestern State does not some solid players. LSU should exercise caution pitching against David Fry, who is batting .349 with 10 homers, 20 doubles and 49 RBIs. The Demons have also been playing a little better ball of late, winning 10 of their last 17.

Follow Luke Johnson on Twitter, @ByLukeJohnson.