Majerle alleges the school did not provide a reason for his termination when it fired him in March and has yet to pay him any severance.
"GCU has already begun a campaign to disparage Majerle as part of its effort to avoid its severance obligation to Majerle by creating false and pretextual reasons for Majerle's termination that are not 'cause' for termination under the agreement and that were never asserted during his employment as potential grounds for termination," the documents read.
Grand Canyon issued a response Tuesday but said it has yet to receive Majerle's lawsuit.
"We regret that coach Majerle's tenure had to end the way it did, but the university is prepared to defend itself and its decision if necessary should coach Majerle decide to continue with litigation," the school said in a statement, according to ESPN's Jeff Borzello. "GCU is unable to comment further until such time as it receives a copy of coach Majerle's complaint and has an opportunity to review his allegations."
Majerle went 136-89 in his seven seasons as GCU's head coach, but the team posted the first sub-.500 record of his tenure this past year. The three-time NBA All-Star was under contract with the school until 2022-23.