For too long the mammals-boy club have barred any big guy star that wasn't a mammal from joining.
This orderism should not stand in this day & age!
Kroxigors are the only Big Guys without a Star Player to represent them (ok, Beast of Nurgle too.. if that is a species and not a messy mistake)
Kroxigors are great big guys and should have a star. I propose Hurtza Lotle.
He's a single-minded hunter who does not play well with others.
Famous for his relentless pursuit of opposing players.
He has juggernaut and shadowing: He will get to you, you will not get away.
He's also stronger and more agile than his rookie bretheren, as befits as Star.

Hurtza Lotle began his career in 2509 with the Crudwater Revilers. His coach described him as 'a danger to himself and others' and truer words were never spoken. Hurtza caused 18 casualties in his first season, 4 of which were deaths. When asked he merely replied " I'm Ssstill Hungry " and consumed the reporter.
From there Hurtza propelled his team into the playoffs where they lost to the Blightburg Bastards.
But it was nonetheless an impressive rookie year for the big Krox.
In subsequent seasons Hurtza proved himself to be remarkably agile for a big reptile as well as coherent of thought. Rare traits indeed! As the years went on however it became ever more obvious that Hurtza was simply not a team player. One could call it hubris if not for fear of being sued by Dark Elf lawyers. Hurtza's popularity rose with the fans who loved to see the two ton reptile rampage the pitch. He was a relentless hunter and nothing seemed to be able to stop him once he got a scent of his prey.
Unfortunately, Reviler's coach found him unreliable as he simply ignored the team plays, preferring to do whatever he felt best. He got results, but he was unpredictable at best. This, combined with his rising popularity and ever-increasing demands for higher contracts caused the Revilers to let him go in 2513.
When asked for comment, Hurtza replied, "Who needs them?" and ate the reporter.
Since then Hurtza has sought acceptance into the ranks of free agents.
Time will tell if Blood Bowl is ready for a non-mammal in this mammal dominated sport.