Twitter caught fire this morning with reports that Travis d’Arnaud was changing his uniform number, from 15 to 7. While I haven’t seen official confirmation yet, it appears the source is an especially revealing e-commerce site: The team’s own order-your-own-‘official’-jersey offer (only $267.99!!).

The drop-down has plenty more to say that’s not yet on the official roster page, including assignments for newcomers John Mayberry Jr. (44); Sean Gilmartin (36); Jack Leathersich (51); Steven Matz (32); and Noah Syndergaard (34). A few other guys on the 40-man are listed in 00, which we’ll assume are unassigned still — Akeel Morris and Gabriel Ynoa. (Leathersich is also listed in 00, while Hansel Robles isn’t listed at all. Neither are the gaggle of NRIs who typically get Spring assignments in the 60s, 70s and 80s).

We may be jumping the gun on at least some of the actual assignments. If d’Arnaud is indeed changing to 7, we’d presume Mayberry would take the vacant 15, which he wore for several years with the Phillies, rather than 44, which technically still belongs to 2014 Met and 2015 non-roster invitee Buddy Carlyle. The switch to 7 would also require that bench coach Bob Geren changes into something else, not that that’s a big deal. We’ve also heard, from a reader, that incoming hitting coach Kevin Long will wear No. 30, but still have no confirmation of that.

The move to 7 will reignite a battle for the all-time lead in hits by a single uniform number: Though 7 and occupants Ed Kranepool and Jose Reyes maintains its longtime, all-time lead, Team 5 led by David Wright as of the end of last season had pulled to within 3 hits.

Typically we’re at the time of year when such info drops officially so we expect to see the roster populate soon and answer — at least for now — the burning questions.