The San Francisco 49ers travel to Las Vegas to conduct a joint practice before they meet on Saturday afternoon at Allegiant Stadium. Getting through the practice and game with no new injuries has to be priority one through ten for Kyle Shanahan and the 49ers. The starting positions are fairly clear; left guard Ben Bartch suffered an injury on Tuesday, but every other starting spot is essentially filled. There are still players with a chance to improve their chances to stick on the 53-man roster or contribute significant snaps in Week 1.

Here are five players who have a chance to seize an opportunity this weekend.

WR Jacob Cowing

Shanahan praised Cowing’s offseason work, but a hamstring injury slowed down the former Arizona receiver’s progress. After returning to practice on Tuesday, Cow

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