Lamar Jackson had been sharp before the sack. Baltimore Ravens quarterback Lamar Jackson did not start the second half of Sunday’s game against the Tennessee Titans because of an ankle injury. Key points and original sources are listed below.

• Lamar Jackson had been sharp before the sack. He completed 15 of 20 passes for 222 yards, two touchdowns and no interceptions, good for a 144.2 passer rating.S1

• Baltimore Ravens quarterback Lamar Jackson did not start the second half of Sunday’s game against the Tennessee Titans because of an ankle injury.S2