5-star defensive tackle Daylon Mack de-commits from Texas A&M

It hasn't been a good day for Kevin Sumlin and the Texas A&M football program.

With Texas already landing some big recruits earlier in the day, including five-star defensive tackle Malik Jefferson -who 247 Sports ranks as the No. 1 recruit in the state of Texas - the Aggies took a step back at the defensive tackle position.

Daylon Mack, a five-star defensive tackle himself, announced on Twitter that he has de-committed from Texas A&M.

Mack noted that he'll announce his top two choices for potential landing spots Saturday, though he may have tipped his hand when he retweeted Jefferson's #HookEm tweet from earlier in the day.