Red Sox recalled LHP Eduardo Rivera from Triple-A Worcester and placed him on the 60-day injured list with a lumbar strain.

So this is why Rivera went on the restricted list on August 17th? The 23-year-old is going to be out for the remainder of the season, but this move allows the Red Sox to open up a 40-man roster spot for Isiah Kiner-Falefa. Rivera had two really nice games for the Red Sox this season and two poor ones. He posted a 2.59 ERA, 1.24 WHIP, and 71/30 K/BB ratio in 55 2/3 minor league innings this season. It remains to be seen if the Red Sox will treat him as a starter or reliever this offseason.