Bateman, the team’s top draft pick, suffered a groin injury Aug. 10 in training camp that required surgery. Boykin, who started 13 games last season, hurt his hamstring Aug. 2, sidelining him for nearly all of training camp and the Ravens’ preseason schedule. Both were placed on injured reserve to start the season. Once a player placed on IR returns to practice, his team has 21 days to place him on its active roster. If the player is not activated, he reverts to season-ending IR the story said.