St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Nationals sign former Cardinals reliever Trevor Rosenthal

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

17 awesome things about the St. Louis Cardinals

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

BenFred: Could old Cardinals friend Trevor Rosenthal help this bullpen?

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

The Snorting Bull: I Love The 1990s Cardinals Part 45 - Andy Benes

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Trevor Rosenthal Bobblehead with Voice Chip St Louis Cardinals 2016 SGA! NIB!

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Washington Nationals Trevor Rosenthal off to historically bad start

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

2022-23 Top 50 Free Agents With Predictions - MLB Trade Rumors

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Red Sox double up on Brewers, salvage finale with 7-2 win

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

17 awesome things about the St. Louis Cardinals

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Trevor Rosenthal, Rookie Pitcher, Makes Mark for Cardinals - The New York Times

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

A (bobble)head's up: A must-have in baseball

St. Louis Cardinals pitcher Trevor Rosenthal shows off his bobblehead on Trevor Rosenthal Bobblehead Day, before a game against the Washington Nationals at Busch Stadium in St. Louis on April 30, 2016.

Brewers trade All-Star closer Josh Hader to San Diego Padres