TUESDAY: Realmuto and Riddle have indeed been placed on the DL, MLB.com’s Joe Frisaro reports (Twitter links). Realmuto has a bone bruise, though the problem doesn’t sound too serious, as Frisaro said he is just “not being rushed” to be ready for Opening Day.

SATURDAY: The Marlins have placed right-handed starter Dan Straily on the 10-day disabled list, according to a report from Clark Spencer of the Miami Herald. In a separate tweet, Spencer notes that catcher J.T. Realmuto and shortstop J.T. Riddle are also likely to begin the season on the DL.

Straily was recently diagnosed with a “slight elbow strain” after experiencing some elbow inflammation.While Straily has told reporters that he doesn’t feel any pain (h/t Joe Frisaro of MLB.com), he’ll reportedly refrain from throwing for the time being. His early-season absence is terrible news for an already-thin Marlins rotation that’s now projected to feature Jose Urena as its opening day starter. Roster Resource assumes that non-roster invite Jacob Turner and Rule 5 pick Elieser Hernandez will be forced into rotation roles at the season’s outset. The Marlins recently optioned offseason acquisition Sandy Alcantara to Triple-A, but it’s fair to think he could be next in line if any of the club’s starting five struggle out of the gates or suffer an injury.

Beyond rotation implications, Straily’s elbow troubles are of serious concern to a Marlins club that held onto him amidst an offseason fire sale of its top players. With Miami clearly beginning a full-scale rebuild, Straily was considered one of the club’s top remaining trade assets. Whether or not the club had any thoughts about trading him prior to this year’s deadline, a serious injury to his elbow would figure to take that option off the table.

Speaking of injured trade candidates, Realmuto hasn’t played since suffering a back contusion on March 11th. The Marlins catcher collided with Gleyber Torres on a pickoff play in the fourth inning of a Grapefruit League game. The injury hasn’t been described as serious in any outlets, so it’s certainly feasible that the club might simply be taking a cautious path with their most valuable asset. Still, a report that he’s likely to go on the DL means that any remaining chance him being traded prior to the season has reduced to near zero.

If Realmuto does end up going on the DL, non-roster invite Bryan Holaday could be called upon to fill in alongside usual backup Tomas Telis. Chad Wallach is already on the 40-man roster after being claimed from the Reds in November, so he presents another option for the Fish.

As for Riddle, he’s yet to play in a game this spring. Joe Frisaro of MLB.com recently reported that he was “a little sore” after ramping up throwing activity. Riddle underwent season-ending surgery last August after suffering a slap-tear in his left shoulder, but figured to be a part of the Marlins’ opening day roster. The odds of that are beginning to look grim. Reserve infield options for the club are few and far between, with non-roster invite Peter Mooney presenting the best option at present.