NORMAN — Allen Patrick is ready for his nickname to catch on.
No one calls him All Day. That's reserved for Adrian Peterson, the man Patrick is replacing as Oklahoma's tailback.
But he's got a nickname.
"They used to call me the All-out Crusher," Patrick said Monday.
That's what he was called back in Conway, S.C., when he was a high school all-stater as a safety and running back.
Now, the All-out Crusher is option No. 1 for the Sooners as they try to replace Peterson, perhaps the best college running back in the country.
Peterson was likely lost for six to eight weeks when he broke his collarbone at the end of a 53-yard touchdown run last Saturday against Iowa State.
And it will likely take more than one player to fill Peterson's void.
"(Peterson) did all facets of the game very good," running backs coach Cale Gundy said. "Now we've got to try to find who does what best for us in certain situations."
Patrick gets the first crack, along with junior Jacob Gutierrez and possibly a true freshman.
Patrick and Gutierrez shared the load during four games last season, when Peterson battled an ankle injury. They combined for 552 yards in those four contests.
"We're two guys that go out there and get the job done," Patrick said. "It was a loss, but we got to go out there and stick it out and do what we got to do.
"Nothing changed. We still go out there and practice the same.