LJ Scott has opted to shut himself down for the remainder of the season so he can take a redshirt. He's been hampered by an ankle injury and has only appeared in four games on the year—the maximum allowable under the new redshirt rule. Dantonio said the redshirt provides "an opportunity for him to come back, get his degree." If the extra year is, in fact, necessary for Scott to obtain his degree, a potential grad transfer would be off the table.
Scott's return could have a big impact on the division, given his talent ceiling and experience. He was a highly-touted prospect coming out of HS—the fourth highest ranked recruit Dantonio has signed to date, according to 24/7 Composite. He had a strong freshmen campaign (699 yards, 4.8 Y/A, 11 TD) and a promising sophomore season (994 yards, 5.4 Y/A, 6 TD) before taking a step back as a junior (898 yards, 4.5 Y/A, 8 TD). And he's played in 42 games so far.
Scott is 1-2 against Michigan.
[SIAP: I searched the board to make sure this wasn't posted but the search results weren't chronologically ordered, so I may have missed it.]
Scott's Stats: https://www.sports-reference.com/cfb/players/lj-scott-2.html
MSU all-time recruits: https://247sports.com/college/michigan-state/Sport/Football/AllTimeRecruits/