To make room on the 40-man roster, the Phillies have placed right-handed pitcher Edubray Ramos on the 60-day injured list.
This won't fix their bullpen entirely, but Philadelphia adds a reliever who is a ground ball machine and just last season posted a 1.94 ERA over 72 appearances.
However, in 47 games this year, the 34-year-old owns a 4.10 ERA and has just 34 strikeouts over 48.1 innings.
With a gluttony of injuries to key members of their bullpen like David Robertson, Seranthony Dominguez and Tommy Hunter, the addition of a dependable arm like Hughes is needed.
Hughes' walks (3.5 BB/9) and hits allowed (7.6 H/9) are up from last year, but if can get consistently get the ball down in the zone, he's proven to be a weapon late in games.