Waguespack signed a minor-league contract with the Brewers on Sunday.
Waguespack was briefly a free agent after being released by the Brewers on May 5, but he quickly returned to the organization. The 32-year-old will likely return to Triple-A Nashville after a stop in the rookie-level Arizona Complex League. Waguespack has produced a 2.40 ERA and 1.20 WHIP with 22 strikeouts over 15 innings in 10 appearances with Nashville this season.