According to ESPN’s Adam Schefter, Miami Dolphins left tackle Jake Long suffered a sprained MCL during today’s practice.
Dolphins believe OT Jake Long sprained his medial collateral ligament during Monday practice. He's getting an MRI to determine exact damage.
— Adam Schefter (@AdamSchefter) August 28, 2012
The good news is that it’s only a sprain and it’s his MCL. At this point, I would think Long will miss the first few weeks of the regular season.