Sanchez welcomes Penders competition

[Getty Images]Chelsea goalkeeper Robert Sanchez says competition from Mike Penders can only help raise standards as the club prepares for the new Premier League season.Last season Sanchez, 28, saw off competition from Filip Jorgensen, who is set to join Strasbourg on loan.But Penders, 21, has returned to Stamford Bridge after spending last season with the French side and will provide fresh competition for the number one shirt.New manager Xabi Alonso has made it clear that every position in his s