Ruben Amaro Jr. has been stressing pitching since taking on the Phillies GM duties.
Eyre has signed a one-year contract extension with the Phils worth $2 million and includes performance bonuses, according to the team.
The goateed left-handed reliever, appeared in 19 games for the 2008 World Champion Phils after being acquired from the Chicago Cubs in early August.
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He filled the valuable roll of being a lefty specialist for Charlie Manuel's Phils. This allowed Manuel to use his other lefty reliever J.C. Romero in longer relief especially in the playoffs.
Eyre, 36, went 3-0 with a 1.88 ERA and 18 strikeouts in 14.1 innings with the Phils. Including his time with the Cubs, Eyre was 5-0 with an 11.2 strikeouts per inning rate.
Eyre has pitches in 575 games for five teams including the Phillies.