Keaschall went 1-for-4 with a walk in Sunday's loss at Baltimore and is hitting .182 (2-for11) this season. He's hit third in the batting order in all three games this season.
Abel (0-1) was the pitcher of record in Sunday's 8-6 loss to the Orioles after allowing five earned runs on eight hits and four walks while striking out four batters over 3.1 innings of relief.
Royals manager Matt Quatraro said that he would be "surprised" if Estevez is available out of the bullpen for Sunday's game in Atlanta, Anne Rogers of MLB.com reports.
Erceg converted a save in Sunday's 4-1 win over Atlanta, striking out one batter while allowing a base hit over a scoreless inning. inducing a game-ending double play ball.