Crabtree says practice paying off for Raiders’ passing game

Practice makes perfect, and so does the preseason, Michael Crabtree hopes.

The Raiders’ receiver beat Tennessee Titans cornerback Antwon Blake by a step, maybe a step and a half, and Derek Carr dropped the ball in for a 41-yard completion in the first quarter Saturday night.

“I think he couldn’t have thrown it any better,” Crabtree said.

The completion is Oakland’s longest pass play of the preseason, and Crabtree and the rest of the offense look ready for the season opener on Sept. 11. Amari Cooper also caught a nice deep pass from Carr, a 29-yarder on which Cooper got both feet down in the end zone for the score.

“It’s because of a lot of practice,” Crabtree said. “We’ve been practicing the…