Outlawcoach15

Runner at second,1 out. Batter lines a ball to the first baseman, the ball hits F3 glove in fair territory and rolls into the base coaches box. Umpire is pointing fair,r2 goes to 3rd,batter runner is still in the box. First base coach picks up the ball and throws it to the pitcher. What's the call? Is batter runner out? Do you return r2 back to second?