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David J. Phillip/Associated Press

Lucas Oil Stadium welcomed specialists, offensive linemen and tight ends for the first day of on-field workouts at the scouting combine. Of those players who participated on Friday, six stood out as potential candidates on San Diego's short list.

Offensive line is a glaring need for the Chargers, so this article will focus on players at that position. Since he took over as GM in 2013, Tom Telesco has drafted two offensive linemen—D.J. Fluker and Chris Watt, both of which played early in their first season. That trend should continue with Telesco's next O-line selection as the state of the offensive line is poor heading into 2015.

Here are six studs that should be on San Diego's short list after Day 1 of drills at the combine.