Source: Evan Mathis Sidelined Following Ankle Surgery

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Evan Mathis had surgery on his ankle, according to a league source.

The procedure was termed a “minor clean out” to alleviate some discomfort and swelling. He is expected to be sidelined for the upcoming OTAs and potentially all of the summer minicamps, but should be full-go for training camp.

Reuben Frank of CSNPhilly was first with the report.

The vacancy at guard in the short term could be filled by Danny Watkins, the former first-round pick who ended up in a reserve role last season.

Mathis was one of the less-heralded signings of that now infamous 2011 offseason, but he turned out to be the best investment. The 31-year-old has started all but one game over the past two seasons for the Eagles, and has proven to be one the line’s most reliable parts. Pro Football Focus‘s rankings has Mathis as the top-rated lineman in the NFL for 2012. He signed a five-year, $25 million contract last offseason.

The OTA’s (Organized Team Activities) kick off on May 13 following this weekend’s rookie minicamp. The mandatory team minicamp runs from June 4-6.

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