Which player was nicknamed "The Polar Bear"?

What uniform number did Jacob deGrom wear with the Mets? What position did Pete Alonso primarily play? Pete Alonso is best known for playing with which MLB team? What uniform number did Pete Alonso wear with the Mets? What position did Ty Cobb primarily play? Ty Cobb is best known for playing with which MLB team? What position did Al Kaline primarily play? What uniform number did Al Kaline wear with the Tigers?