Relevant, in concerns of the Rays roster crunch...
https://blogs.fangraphs.com/the-40-man-situations-that-could-impact-trades/
2. Tampa Bay Rays
Current 40-Man Count: 42
Pending Free Agents: 3 (Travis d’Arnaud, Avisail Garcia, Eric Sogard)
Must-Add Prospects: 4 (Vidal Brujan, Ronaldo Hernandez, Lucius Fox, Moises Gomez)
Fringe Current 40-Man Members: 9 (Matt Duffy, Ji-Man Choi, Joe McCarthy, Jake Faria, Oliver Drake, Austin Pruitt, Chaz Roe, Mike Zunino, Guillermo Heredia)
Possible-Add Prospects: 10 (Garrett Whitley, Chris Betts, Ryan Boldt, Resly Linares, Joel Peguero, Kean Wong, Matt Krook, Jake Cronenworth, Curtis Taylor, Roberto Alvarez)
The Rays have already made this situation a little less crunchy with their recent moves, and they’ll naturally arrive at an acceptably rostered 39 players when the season ends. By December, some decisions will need to be made as there are four to six prospects to add, and some fringe 40-man types who are eligible for arbitration (Daniel Robertson, Matt Duffy, Chaz Roe, Mike Zunino, Guillermo Heredia); they can likely wait until March to make decisions on Ji-Man Choi and Jake Faria, who are out-of-options.
Whitley, a tweener with big power and big K’s, who missed 2018 with a shoulder injury and is only in High-A, and Betts, a Low-A catcher with thump but an injury history, are both tough carries in the Rule 5 Draft, so we’d expect one or both of them, along with the rest of that 10-man possible-add list, to be left unprotected. Some clubs with less 40-man depth might protect those two to be sure to keep them, but Tampa Bay has lots of major league-quality depth to keep around on the 40-man in lieu of buying it with their meager payroll.
We think the fringe 40-man members who will get bumped are Heredia, a fourth outfielder who’s a hair above replacement level and is entering arbitration, Zunino, who will be due $5 million-plus in arbitration and has a .537 OPS, and Roe, a 33-year old middle reliever with a Wiffle ball slider who’s due $2 million-plus in arbitration and has a 4.82 xFIP. The Rays could just non-tender their three arb cases and hold onto Pruitt, a 30-year-old finesse utility arm who’s out of options in 2020, until they sign a replacement for Zunino, sign their first free agent, or decide to protect Whitley or Betts. If the Rays want to make multiple additions to the 40-man in free agency, or protect both Betts and Whitley, they’ll have to cut some players who would draw trade interest. Wander Franco is also a strong candidate to be added to the roster during the 2020 season.