Worth noting

• Aledmys Diaz, the Cuban shortstop St. Louis signed in March, has been placed on the seven-day Double-A disabled list with an upper back/lat strain, according to general manager John Mozeliak. Diaz has been prescribed a treatment plan of rest and therapy. Diaz was batting .307/.321/.520 with nine extra-base hits and 16 RBIs in 20 games for Springfield before the injury.

Joe Kelly (left hamstring strain) played long toss again on Tuesday, though the Cardinals have still not announced an expected date for the right-hander to return to the mound. Kelly will not come off the 15-day DL when eligible on Friday, and he is expected to need at least one Minor League rehab start before returning later in May.

• After missing time due to a personal matter, hitting coach John Mabry returned to the club on Tuesday.

Top prospect Oscar Taveras extended his hitting streak to 12 games on Monday with a 2-for-4 performance that included a double and a home run. He homered in Sunday's game, as well, and now has five on the season for Triple-A Memphis.

• The Cardinals announced Tuesday night that left-hander Jaime Garcia will begin a Minor League rehab assignment when he starts for Double-A Springfield on Sunday. Garcia, who was stalled this spring by left shoulder bursitis, can remain on that rehab assignment for a maximum of 30 days. He has already made two starts in extended spring games.

• Reliever Jason Motte is also expected to join Garcia in Springfield over the weekend as long as all goes well in an extended spring appearance on Wednesday. Motte is nearly 12 months removed from undergoing Tommy John surgery.

Jenifer Langosch is a reporter for MLB.com. Read her blog, By Gosh, It's Langosch, and follow her on Twitter @LangoschMLB. This story was not subject to the approval of Major League Baseball or its clubs.