BIRMINGHAM, Ala.  Two years ago, Eric Bledsoe was a star point guard without the grades to meet the N.C.A.A.’s minimum standards and needing to find a new high school. He solved both problems by moving to A. H. Parker High School and now, after one season at the University of Kentucky, he is awaiting a lucrative payday in next month’s N.B.A. draft.

The changes in Bledsoe’s academic and athletic prospects have attracted the attention of the N.C.A.A., which has sent investigators to at least three places in Alabama to ask about him. The N.C.A.A. does not talk about its investigations, and the scope of this one is unknown.

But Bledsoe’s academic makeover and the extra benefits he apparently received could be another blow to Kentucky Coach John Calipari, who led teams at Massachusetts and Memphis that had their records and Final Four appearances expunged after rules violations were found under his watch.

Interviews with those connected with Bledsoe’s life in Birmingham revealed potential violations.

¶Brenda Axle, the landlord for the house where Bledsoe and his mother moved for his senior year of high school, said that Bledsoe’s high school coach paid her at least three months’ rent, or $1,200. By moving there, Bledsoe was eligible to play for Parker, which he led to the Alabama Class 5A title game. Maurice Ford, the coach, denied paying the money.