Atlanta Braves outfielder Austin Riley (knee) has been diagnosed with a partially torn LCL in his right knee. He's been placed on the 10-day injured list, so he could be sidelined for quite some time. Riley started off the season hitting well with the Braves, but hit a second half slump. There is a chance that Riley is done for the season, but a better timetable will be known later. Adam Duvall will continue to fill in for Riley in the outfield.