MILWAUKEE BREWERSPhotos: Lorenzo Cain returning to BrewersLorenzo Cain is greeted by his teammates on the Royals during a game against the Minnesota Twins last season.Jeffrey Becker-USA TODAY SportsLorenzo Cain gets set in the batters box during Kansas City's game against Cleveland in August.Peter G. Aiken-USA TODAY SportsSep 30, 2017; Kansas City, MO, USA; Kansas City Royals center fielder Lorenzo Cain (6) steals third base against the Arizona Diamondbacks in the fourth inning at Kauffman Stadium. Mandatory Credit: Jay Biggerstaff-USA TODAY SportsJay Biggerstaff-USA TODAY SportsSep 29, 2017; Kansas City, MO, USA; Kansas City Royals center fielder Lorenzo Cain (6) runs back to the wall to catch a fly ball against the Arizona Diamondbacks during the fourth inning at Kauffman Stadium. Mandatory Credit: Peter G. Aiken-USA TODAY SportsPeter G. Aiken-USA TODAY SportsRoyals centerfielder Lorenzo Cain smacks a single against the White Sox in September.Jay Biggerstaff-USA TODAY SportsLorenzo Cain celebrates after hitting a triple during a Royals game against Twins in August.Jeffrey Becker-USA TODAY SportsLorenzo Cain signs the jersey of Eli Kleinmeyer, 4 months, before a game against the Mariners at Safeco Field in Seattle on July 4.Joe Nicholson-USA TODAY SportsLorenzo Cain gets a kiss on the cheek from an adoring fan during a game against the Giants at AT&T Park in San Francisco in June.Stan Szeto-USA TODAY SportsLorenzo Cain signs autographs for Royals fans during batting practice prior to the game against Seattle at Kauffman Stadium in August.Peter G. Aiken-USA TODAY SportsLorenzo Cain appeases some autograph seekers before the Royals played the White Sox at Guaranteed Rate Field in Chicago in August.Dennis Wierzbicki-USA TODAY SportsLorenzo Cain reacts after the Royals beat the Indians at Kauffman Stadium in August.Peter G. Aiken-USA TODAY SportsLorenzo Cain waits to be mobbed by his teammates after hitting a game-winning single for the Royals against the Rangers at Kauffman Stadium in July.Denny Medley-USA TODAY SportsLorenzo Cain is all smiles after teammate Alcides Escobar, another former Brewer, hit an RBI single against the Tigers at Comerica Park in Detroit in July.Rick Osentoski-USA TODAY SportsLorenzo Cain looks on as a cat runs past him in center field during a Royals game against the Cardinals at Busch Stadium. in St. Louis in August.Jeff Curry-USA TODAY SportsLorenzo Cain heads home to score on a double by Royals teammate Melky Cabrera against the Blue Jays at Rogers Centre in Toronto in September.Dan Hamilton-USA TODAY SportsLorenzo Cain rounds third and heads home to score a run for the Royals against the Mariners at Kauffman Stadium in August.Peter G. Aiken-USA TODAY SportsLorenzo Cain follows through on his swing as he lashes an RBI single for the Royals in a game against the Tigers in Detroit in September.Rick Osentoski-USA TODAY SportsLorenzo Cain rounds the bases after smacking a two-run homer for the Royals against the Athletics in August at the Oakland Coliseum.Kelley L Cox-USA TODAY SportsLorenzo Cain singles for the Royals against the Mariners in August at Kauffman Stadium.Peter G. Aiken-USA TODAY SportsLorenzo Cain dives into third base for a triple in the Royals' game against the Astros in June at Kauffman Stadium.Jay Biggerstaff-USA TODAY SportsLorenzo Cain looks on from the dugout during the Royals game against the Tigers in July in Detroit.Rick Osentoski-USA TODAY SportsLorenzo Cain slides home safely during a Royals' game against the Mariners in July at Safeco Field in Seattle.Joe Nicholson-USA TODAY SportsLorenzo Cain hits an RBI single against the Red Sox in June at Kauffman Stadium in Kansas City.Peter G. Aiken-USA TODAY SportsLorenzo Cain makes a diving catch for the Royals in center field against the Twins in June at Kauffman Stadium.Peter G. Aiken-USA TODAY SportsLorenzo Cain makes a catch against the wall for the Royals in a game against the Dodgers in July at Dodger Stadium.Jayne Kamin-Oncea-USA TODAY SportsLorenzo Cain reacts after hitting a game-winning single during the 11th inning for the Brewers on Saturday, Aug. 28, 2010, in a game against the Pirates at Miller Park.Morry Gash, Associated PressBrewers rookie Lorenzo Cain is congratulated by teammate Casey McGehee after scoring a run against the Cardinals in a 2010 game.Jeff Roberson, Associated Press