When Minnesota Vikings center John Sullivan injured his back and was placed on injured reserve back on September 10, 2015, he was given the designation to return. That meant that if everything went well, the anchor of the team’s offensive line would be eligible to return to the squad for the November 8th game against the Saint Louis Rams. However, now his return this season is up in the air.
According to the Twin Cities Pioneer Press, John Sullivan suffered a setback during workouts that forced him to undergo a second procedure on his back. Considering the healing time for an injury of that type, it is unlikely that he will be able to return for the 2015 NFL season.