Quick hits

• Former Tigers starter Nate Robertson is back in camp, this time on the Minor League side. He agreed to a Triple-A contract last week. The move came around the same time the Tigers signed another familiar left-hander, Wil Ledezma, to a similar contract. Robertson last pitched in the Majors in 2010. He spent last spring in camp with the Texas Rangers before going 4-4 with 3.04 ERA at Triple-A Round Rock.

• The Tigers confirmed they will have metal detectors installed at all gates at Comerica Park in time for Opening Day as part as a mandate from Major League Baseball. Though MLB set a deadline for next season, the Tigers beat the goal by a year.

Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. This story was not subject to the approval of Major League Baseball or its clubs.