(Undated)  --  One of the Mariners top prospects has been shut down for the final week of the Arizona Fall League.  Julio Rodriguez has been limited due to a lower back strain.  He made waves after reaching High-A ball last season at age 18 and was the youngest player in the AFL.  In 15 games with Peoria, Rodriguez had 15 hits and a .397 on base percentage.  MLB Pipeline ranks him as the team's number two prospect.