Pirates 3B Ke'Bryan Hayes calls out umpire, pleads for robot system – KIRO 7 News Seattle
Pirates Add Ke'Bryan Hayes and Anthony Alford to Roster – Pittsburgh Baseball Network – Pirates
Pirates Sign Catcher Kevin Plawecki to Minor League Deal; Invite to Big League Camp
Kovacevic: What's (really) wrong with Pirates' Ke'Bryan Hayes?
Pirates face questions as camp begins, but 'who's on third?' isn't one of them - The Athletic
Mark Madden: Ke'Bryan Hayes is a brilliant fielder, but Pirates need more from his bat : r/buccos
Three thoughts as Pirates' begin to make final cuts
Ke'Bryan Hayes – Pittsburgh Baseball Network – Pirates
Ke'Bryan Hayes Gets a Record Extension from the Pirates