INDIANAPOLIS — For a second straight offseason, Darius Leonard will have to wait until training camp to really begin his on-field preparations for the upcoming season.

Indianapolis Colts general manager Chris Ballard today told reporters that Leonard, the NFL's 2018 Defensive Rookie of the Year and First-Team All-Pro selection at linebacker, recently underwent a minor procedure to his ankle that will keep him out about six weeks.

While Leonard is expected to be ready to go for training camp, that six-week window will keep him out of the rest of the offseason workout program, which includes OTAs and minicamp.

Leonard isn't the only key Colts player to have had a minor procedure this offseason; Ballard also confirmed that tight end Eric Ebron underwent surgery to his groin back in April.

Leonard initially suffered the ankle injury early last season, but he still managed to play in 15 regular season games — he missed the Colts' Week 5 game against the New England Patriots — and led the entire league in total tackles (163) and solo stops (111).

Leonard, the Colts' 2018 second-round pick out of South Carolina State, also added seven sacks, eight quarterback hits, 12 tackles for loss, four forced fumbles, two fumble recoveries, two interceptions and eight passes defensed.

While Leonard won't be available for the rest of the offseason workout program, he can lean on a similar situation from last year, when he battled a nagging quad injury and wasn't fully available for on-field work until the start of training camp.

Ebron, meanwhile, isn't expected to miss any significant amount of time, but could be limited over the next few weeks as a precaution. He tweeted April 4 that "the procedure today was a major success."

In his first season with the Colts in 2018, Ebron earned his first-career Pro Bowl selection after catching 66 passes for 750 yards and 13 touchdowns — all career highs — and also registering a rushing touchdown.