Ravens quarterback Lamar Jackson was not wearing a protective sleeve on his right arm and was throwing the ball at practice on Thursday. OWINGS MILLS, Md. — Ravens quarterback Lamar Jackson was not wearing a protective sleeve on his right arm and was throwing the ball at practice on Thursday. That’s good news for the team because Jackson was limited the previous day. Coach John Harbaugh had no doubt about Jackson’s availability for the Week 3 game against New England. “He’ll be playing on Sunday,” Harbaugh said. In addition, the Ravens had all 53 players on the practice field for…