Answer: rog

AnswerCrossword Clue
ROGHornsby, for short
ROGBaseball's Maris, to pals
ROGYankee Maris, informally
ROGMaris, to "The Mick"
ROGMaris, to his pals
ROGMick's Yankee teammate
ROGKrivoi ..., Ukraine ore center.
ROGMan's nickname.
ROGMan's name: Abbr.
ROGBaseball's Maris, for short
ROGCritic Ebert, informally
ROGKrivoy ...
ROGKrivoi ..., Ukraine