CINCINNATI -- Tuesday was a tough day for the high-powered bullpen at Double-A Chattanooga.
Right-hander Nick Burdi, a second-round pick out of Louisville in 2014, was demoted to Class A Fort Myers after posting a 5.93 ERA in 22 games (30 1/3 innings) at Double-A Chattanooga. Burdi, rated the Twins' No. 7 prospect by Baseball America after a dazzling pro debut, struck out 9.79 batters per nine innings but allowed a nine-inning walk rate of 6.53.
Fellow righty Zack Jones, who had 10 saves as the Lookouts' primary closer, was placed on the seven-day disabled list with a strained right groin.