One of the most valuable equipment contracts in college sports is changing.

The University of Notre Dame will switch from wearing adidas for all its team sports to Under Armour when the current deal expires at the end of the school year, multiple sources told ESPN.com. Terms of the deal, which is expected to be signed in the very near future, are not known.

Under Armour emerged as the leading candidate for Notre Dame in the last month. Sources say Under Armour founder and CEO Kevin Plank flew to South Bend, Ind., on Thursday to meet with school officials.

Last month, Notre Dame athletic director Jack Swarbrick denied reports that the school had made a decision to go with Under Armour, saying he was conducting a full review with all the major players, including Nike. Swarbrick did say a decision likely would come after Jan. 1.

"We have been very happy with adidas," Swarbrick told ESPN.com's Matt Fortuna at the time. "But it is just good business to use the expiration of a contract to review all options."