EAST RUTHERFORD, N.J. -- The New York Giants lost a quarterback for the third time in four games after Tommy DeVito left Sunday's game against the Baltimore Ravens in the first half with a concussion.

Tim Boyle came in to replace DeVito with Drew Lock available only as the emergency third-string option. The Giants went with DeVito as the starter this week because Lock was dealing with heel and left elbow injuries. He was in a boot earlier in the week.

DeVito, making his second start this season, went 10-of-13 passing for 68 yards with no touchdowns or interceptions before taking several big hits on a touchdown drive late in the first half. Baltimore's Nnamdi Madubuike was called for roughing the passer and DeVito then took a pair of sacks before Devin Singletary ran the ball in for a 3-yard score.

DeVito remained in the game for the remainder of the drive, but when the Giants got the ball back, Boyle came in for the final snap of the half. It was announced after halftime that DeVito was ruled out with the concussion.

The second-year quarterback was an instant sensation last season while winning three consecutive starts as an undrafted free agent rookie. But he came into this season as the third-stringer behind starter Daniel Jones and Lock.

The struggling Giants have since benched and cut Jones, started DeVito, started Lock and are now onto their fourth quarterback of the season with the recently signed Boyle.