Bernard Pierce returned to practice for the first time this week and after Thursday’s session, the rookie running back declared himself and his injured right knee ready for the Ravens’ road game against the Denver Broncos in Saturday’s AFC Divisional playoff round. “I’m good,” he said. “I’m ready to go. I’m ready to go to war with my guys.” Pierce’s availability could be significant for the Ravens. He has led the team in rushing in each of the last three contests, culminating with a 13-carry, 103-yard performance in last Sunday’s 24-9 victory over the Indianapolis Colts in the AFC Wildcard round.