Wide receiver Steve Smith: Even though he dropped two passes in the end zone, Smith was the only player who provided a spark for Baltimore. His 137 receiving yards accounted for 40 percent of Joe Flacco's production. This type of effort is magnified by the fact that he is playing with four micro fractures in his back.
Returner Jeremy Ross: For the second straight week, he delivered a kickoff return of at least 40 yards. It makes you wonder why he was on the practice squad for the first four weeks.
Quarterback Joe Flacco: His two interceptions were converted into two field goals, which was huge in a game decided by five points. Flacco has thrown interceptions in five of his games this season.
Cornerback Shareece Wright: It was a nightmare debut for Wright, who allowed two touchdowns to his former team. Baltimore coach John Harbaugh singled out Wright for not playing with discipline on the 49ers' 76-yard touchdown to Torrey Smith.
Kicker Justin Tucker: Maybe the blame lies more on Levi's Stadium turf. Tucker's plant foot got stuck on a 45-yard field goal that hit the right upright. The second-most accurate kicker in NFL history has missed three of his last 10 attempts.