The story of MLB The Show for this year has been a wild one, to say the least. Despite being a Sony developed title, as well as a longtime staple IP for the company, the 2021 edition of the game was announced to be coming to Xbox systems for the first time. It also was then revealed to be coming to Xbox Game Pass day and date, which is quite something. Now, you can preload on those systems as well.
People have reported that the preload option is now available on both generations of Xbox consoles the baseball sim will land on. The Xbox Series X/S version is said to both be roughly 72 GB, while the Xbox One version clocks in at about 45 GB. These sizes could change closer to release, however, if there are any day 1 updates or patches, so keep that in mind.
In addition to those platforms, MLB The Show 21 will release on PlayStation 5 and PlayStation 4, which also have preloads live now.