Rocker threw five scoreless innings in a 2-1 sweep-clinching win vs. the Chicago White Sox at Globe Life Field.

The quick toss was surprising because Venable generally has a reserved demeanor. But he reached his breaking point after a ball call by plate umpire Marvin Hudson during Rangers shortstop Corey Seager’s at-bat that made it a 3-2 count, instead of a strikeout.

Chicago White Sox center fielder Luis Robert Jr. was a late scratch at the Texas Rangers due to right thumb soreness. Robert was due to bat seventh against the Rangers on Sunday. The White Sox

The Rangers have won a pair of bullpen games in the last week.

"I have him penciled in the lineup for Tuesday, give him the day and see where he’s at," manager Will Venable said. "We expect him to be in on Tuesday."

With the three shutout innings against the White Sox, Armstrong lowered his ERA as a starter to 1.04 (four earned runs in 34.2 innings). That’s the lowest starter ERA (minimum of 17 starts) for any pitcher in Major League Baseball’s Live Ball Era, which began in 1920.