With the A's and Giants set to renew their rivalry this week in San Francisco, we figured this would be the perfect time to rank the best players to play for both teams during their career.
Some of these players spent less than a full season with the A's or Giants, but if they donned the uniform for even one game, we're counting them.
So without further ado, here are our top 10 players to suit up for both the A's and Giants.
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CLICK HERE FOR THE BEST 10 PLAYERS WHO JOINED THE A'S AND GIANTS