Guard Alex Boone, who skipped the beginning of voluntary organized team activities, is expected to attend Tuesday’s mandatory minicamp session, according to the Sacramento Bee. 

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Boone may end up switching positions, as the 49ers need a right tackle to replace the retired Anthony Davis. Davis is one of four 49ers who have retired since the end of the 2014 season.

Boone, a starter since 2011, also skipped voluntary OTAs last season because he sought a new contract. The team reworked his deal, which runs through the 2015 season.