Ruben Amaro Jr. addressed the media today, telling Todd Zolecki and others that the club is actively looking to upgrade the center field position after receiving a 6-8 week timetable for Ben Revere‘s return from a broken foot. The Phillies have played second baseman Cesar Hernandez in center field yesterday and today at Triple-A Lehigh Valley and have asked Hernandez to report to Double-A Reading during the Triple-A All-Star break, including skipping the Triple-A All-Star game for which he was selected. Amaro specifically stated that the team is looking for an upgrade over today’s hero John Mayberry Jr. but they will find a pretty thin trade market. The Blue Jays, who entered today 11.5 games out of the AL East race do have Colby Rasmus, Rajai Davis, and former Phils propsect Anthony Gose, who all are able to play center field, but the Jays may be reluctant to trade any of them because of their relative youth and inexpensive, team-friendly deals.