Dan Straily walked Anthony Rizzo in the second inning, and Derek Norris went to the mound for a chat.

Actually, it was more than a chat. It was a sermon by a catcher trying to inspire his pitcher.

"Listen, you've got to own the mound," said Norris, recalling the moment. "You've got to own the mound right now. Show these guys who you are, show this coaching staff and front office what you can do and how you do it."

A determined Straily struck out the next two batters and wound up throwing seven innings of one-hit ball, helping the A's beat the Cubs 1-0 before a Fourth of July crowd of 26,967 at the Coliseum.

Straily's remembrance of Norris' mound visit?

"He said five words, and all of a sudden, it lit a fire."

Five words?

"He might have heard five words," Norris quipped.

Evidently, they were the most important five words. Straily, who was recalled from Triple-A Sacramento early Thursday, had little problem with a team he knew little about. The only hit he surrendered, a fourth-inning single to left by Alfonso Soriano, led to Yoenis Céspedes throwing out Starlin Castro at the plate.

Norris applied the tag and shortly thereafter, tossed out Soriano trying to steal second, ending the inning. Norris also scored the game's only run, bolting home on catcher Welington Castillo's seventh-inning passed ball.