Auburn's Greg Robinson headed to NFL

Auburn's offensive line took a bit of a hit on Tuesday, as starting left tackle Greg Robinson declared for the 2014 NFL draft.

The redshirt sophomore All-American announced his decision via Twitter.

After Monday night's 34-31 loss to Florida State in the VIZIO BCS National Championship, Robinson told reporters that he would do what was best for his family when it came to deciding on his future. It had to be too hard to turn down the NFL when he looked at his first-round projection. ESPN's Mel Kiper Jr. rates him as the No. 9 overall prospect in the draft.

Robinson started at left tackle the last two seasons and helped guide Auburn's offense to a magical season on the Plains in 2013. The Tigers ranked first nationally in rushing (328.3 yards per game) and second in the SEC in total offense (501.3).

Robinson really was the anchor of this line in 2013, and replacing him will be quite the chore for Gus Malzahn and his staff. Redshirt freshman Shon Coleman backed up Robinson at left tackle and could be next in line to take over, but the coaches might decide to move either Avery Young or Patrick Miller from right tackle to left tackle.

Now, the Tigers will sit and wait for fellow All-American and Heisman Trophy finalist Tre Mason to make his decision about whether to stay another year or take his talents to the NFL.

Greg Ostendorf contributed to this report.