Although Chargers coach Jim Harbaugh expected everyone to be full-go for training camp, the fourth-year edge rusher is holding in amid contract negotiations. On Thursday, Tuipulotu suited up normally and participated in drills alongside fellow defensive linemen but didn’t participate in team sessions. “We keep it rolling in practice,” Chargers defensive coordinator Chris O’Leary said. Chargers edge Tuli Tuipulotu is suited up and doing drills with teammates on Day 2 of training camp. But as a key cog in the Chargers’ defense who loves practice and training camp, the Chargers won’t feel quite complete on the field until Tuipulotu is practicing with his teammates again.