SURPRISE, Ariz. (AP) — Dan Straily worked four promising innings only hours after the Athletics said two of their starters might not be ready for opening day, Derek Norris and Michael Taylor homered and Oakland and the Kansas City Royals played to a 9-9 tie in nine innings Friday.A’s manager Bob Melvin said before the game starters Jarrod Parker and A.J. Griffin are in “jeopardy” of beginning the season on the disabled list with arm injuries.“We’ll have somebody step up if they’re not ready,” Straily said. “That’s all it comes down to. We’re not limited to five quality arms in this organization.