LaPorta (back) participated in Detroit's second open practice of OTAs on Thursday, Tim Twentyman of detroitlions.com reports.
LaPorta didn't participate last week during the first OTA practice that was open to reporters, but it's possible he's been practicing behind closed doors. Now that reporters have spotted LaPorta on the field, it's clear he has at least some level of clearance for football activities, coming back from mid-November surgery on a herniated disc. LaPorta said in January that he expected to have full clearance before the start of training camp in late July.