The Boston Red Sox front office was busy on their penultimate off day of the season.
Jarren Duran and Jonathan Araúz were activated from the COVID-19 injured list, then sent down to Triple-A Worcester. In order to make room for them on the 40-man roster, the Red Sox designated Yacksel Ríos and Geoff Hartlieb for assignment.
Ríos and Hartlieb both were waiver acquisitions this season, with the latter never appearing in a game with Boston after getting claimed off the wire from the New York Mets earlier this month. Ríos, who landed with the Red Sox in mid-June, last pitched in the big leagues back in August but has made 20 appearances in Boston this season.
Both veteran hurlers were in Triple-A at the time of their DFA.