Update: It appears Harbor's injury is just a calf strain and he'll be out of a few days.

Original post:

Jacksonville Jaguars tight end Clay Harbor went down in practice at Bartram Trails High School on Monday evening and was carted off the field. The extent of his injury isn't known at this time, but the Jaguars back up tight end appears to be sidelined for the time being.

Clay Harbor just helped off field. Tight end getting looked at. On the cart now. #ActionSportsJax #JagsCamp — Brent Martineau (@BrentAS360) July 28, 2014

Harbor, who the Jaguars claimed on waivers last offseason, flashed his receiving ability a bit last season as Marcedes Lewis primary backup at the tight end position.

He finished last season with nearly 300 receiving yards and two touchdowns, but his season was cut short due to injury. Harbor figures to be the Jaguars back up tight end and more of a flexed out receiving option than an in-line tight end, but up until this point had looked good through OTA practices and training camp.

We'll update on Harbor's status when more information is available.