ARLINGTON, TEXAS – DECEMBER 29: Head coach Brian Kelly of the Notre Dame Fighting Irish takes the field with his team before the game against the Clemson Tigers during the College Football Playoff Semifinal Goodyear Cotton Bowl Classic at AT&T Stadium on December 29, 2018 in Arlington, Texas. (Photo by Kevin C. Cox/Getty Images)Notre Dame’s Jafar Armstrong suffered an injury early on in the season opener versus Louisville.It’s a big loss for the Fighting Irish. Armstrong was expected to be one of their main offensive contributors in 2019. But it looks like he will be able to return to the field later this season.ND head coach Brian Kelly gave an update on Armstrong during his Monday morning press conference.“He’s a good player,” Kelly said, via 247Sports. “We will be without him for a few weeks. It’s an injury that requires some time. To put an exact time on it, it’s hard to say. Julian Okwara didn’t have surgery, but had a similar injury. He was about four weeks. No timetable, but he’s a very good player that gives us versatility. We’re confident in our backs. Avery Davis is back on the offensive side of the ball.”According to a report from ESPN’s Adam Rittenberg, Armstrong “had surgery to repair a torn abdominal muscle.” Armstrong was recruited as a wide receiver out of high school. He came to Notre Dame as a 3-star prospect and redshirted during his freshman year.Last season, Armstrong rushed for 383 yards on 72 carries and seven touchdowns.He also added 14 catches for 159 yards.The Fighting Irish would love to have Armstrong back considering their brutal strength of schedule. Notre Dame plays Georgia, Michigan, USC, Virginia and Stanford among others throughout 2019.