Rob Gordon (NL) and Jeremy Deloney (AL) will be evaluating prospects every-other week throughout the baseball season. They will provide updates on some of the risers and fallers along with providing injury updates and promotions/demotions.

Rookies have debuted, and we examine early plate discipline for two of the most notable ones.

Heston Kjerstad is one of several prospects trying to force their way into an already-crowded BAL lineup. Plus, a looming change in TAM's outfield, and more.

With Victor Scott's demotion and STL opting for a third catcher, things are looking up for Ivan Herrera. Plus IL time for Javier, Rendon, Hall and more.

Reid Detmers is a top rated starting pitcher for his home start versus the Orioles.

Harold Ramirez's high swinging strike rate and poor batted ball quality make him a poor bet for a turnaround.

Call-ups for April 22nd: Nick Robertson (RHP, STL)

Chugging through Week 4: Let's chat! Lineups, rookies, slow starts, injuries—we'll cover it. Join co-GM of BaseballHQ Brent Hershey at 12noon ET.