At NU Athletics website Kropp is listed as 6'9" 230. (FWIW, Nick is 6'7, 225). He's a frosh, so he's gotta put on muscle. By the time he's a junior, I could envision him as 6'9" 250 - which would put him in the mix with other B1G centers like:
Morez Johnson, 6'9", 250 - Michigan
- Jacob Cofie, 6'10", 230 - USC
- Sam Alexis, 6'9", 240 / Reed Bailey 6'10", 230 - Indiana
- Jaxon Kohler, 6'9", 245 - MSU
- Pharrell Payne, 6'9, 250 - Maryland
- Jaylen Crocker-Johnson, 6'8" 240 - Minnesota
- Alvaro Folgueiras, 6'10", 230 - Iowa
- Rienk Mast, 6'10" 250 - Nebraska