Frias on DL; Monday's starter uncertain

Frias' scoreless start 1:05 6/25/15: Carlos Frias tosses five scoreless innings with five strikeouts in his start against the Cubs All-Star starters unveiled tonight, full rosters MondayPHOENIX -- Cuban infielder Hector Olivera, rehabbing a strained left hamstring at the Dodgers' Camelback Ranch complex, visited the big league clubhouse at Chase Field to introduce himself to manager Don Mattingly and staff.

The 30-year-old Olivera signed a $62.5 million contract May 20 and had been learning to play third base to go with his natural second base position when he was injured June 20 while playing for Triple-A Oklahoma City. It's not clear how Mattingly will work Olivera into the mix when he's…