The Facts: McCoy, who is battling for the backup job this season, injured his Achilles tendon during Tuesday’s practice, according to coach Pete Carroll.

Diehards Line: McCoy missed all of last season with an Achilles injury, but Carroll said the “early indications” are that McCoy injured his other Achilles. He was carted off the field during practice after staying down on the field for a few minutes. “If it is what they think it is, it’s just a real heartbreaker,” Carroll said. “He worked so hard to get back.” When asked if the injury appeared serious, Carroll said yes. ... Zach Miller and Luke Willson are still the more likely receiving threats, but McCoy is a well-rounded veteran.