Brewers general manager David Stearns said that Kirk Nieuwenhuis underwent nerve release surgery after the close of the 2016 season.
Brewers and OF Kirk Nieuwenhuis avoided arbitration by agreeing to a one-year, $900,000 contract.
Kirk Nieuwenhuis (abdomen) grounded out as a pinch-hitter on Sunday against the Rockies.
Kirk Nieuwenhuis feels better after receiving a cortisone injection in his strained abdomen.
Kirk Nieuwenhuis has been diagnosed with a sports hernia.
An MRI taken Monday on Kirk Nieuwenhuis' abdomen turned up negative.
Kirk Nieuwenhuis (abdomen) will miss the remainder of the weekend series against the Cubs.
Kirk Nieuwenhuis left Friday's game against the Cubs with an abdominal strain.
Kirk Nieuwenhuis went 2-for-4 and hit a three-run homer Wednesday as the Brewers beat the Cardinals 3-1.
Kirk Nieuwenhuis hit a two-run home run, his 12th of the season, in Thursday's loss to the Pirates.
Kirk Nieuwenhuis collected a three-run homer and a double in Thursday's loss.
Kirk Nieuwenhuis went 3-for-3 with two home runs and four RBI as the Brewers won on Saturday.
Kirk Nieuwenhuis swatted a go-ahead two-run homer in a 5-3 win over the Nationals on Friday.
Kirk Nieuwenhuis went 2-for-4 with a two-run homer Thursday against the Cubs.