Extent of injury to Notre Dame's Jarron Jones is unconfirmed

As reports of her son’s injury populated her Facebook timeline Friday evening, Lakiescha Titus-Jones openly asked for prayers for him.

The extent of the injury to Notre Dame senior nose guard Jarron Jones could not be confirmed Friday night and will likely be revealed after Saturday morning’s Notre Dame football practice. Irish coach Brian Kelly was already scheduled to meet with the media after the Saturday session before news of Jones’ condition began to circulate Friday night.

Jones, a returning starter, was recovering from a Lisfranc injury — which required surgery to repair the arch in his left foot. The latest setback is believed to be unrelated to that one, which knocked Jones out of the final two games of the 2014 and limited him to one play — his only sack of the season — in the game that preceded those.

The 6-foot-6, 315-pounder for Rochester, N.Y., registered 40 tackles, 7.5 tackles for loss, nine quarterback hurries and two fumble recoveries in the 11 games in which he played in 2014.

After midnight, in the early-morning hours Saturday, Jones tweeted on his Twitter account: "I wish somebody made guidelines on how to get up off the sidelines."

Fast-ascending freshman Jerry Tillery took Jones’ place during spring drills, while the latter was still recovering, and the early enrollee would be an option to move into the starting lineup. The Irish could also shuffle an end inside if Jones’ injury is deemed long-term.

The Irish, ranked 11th in the preseason coach poll, open the 2015 season in prime time Sept. 5 at home against Texas.