Crossovers 2019/2020
The following is not intended as a complete list of all crossovers (and MLB newcomers), but a list of those who are viewed as having any likelihood of being protected or being acquired in opening rounds of the 2020 draft (along with some dregs who'll get dropped as we go along). And, there's still lots of player movement ahead. Not included are picks from the June draft as so many leagues allow them to be drafted during the current season.
If you spot any errors / omissions please drop me a line. 
| To National League | To American League | |||
| Shogo Akiyama OF JAPAN to CIN | Jesus Aguilar 1B MIL to TB | |||
| Brett Anderson LHP OAK to MIL | Kolby Allard RHP ATL to TEX | |||
| Trevor Bauer RHP CLE to CIN | Chase Anderson MIL to TOR | |||
| Jay Bruce OF SEA to PHI | Nick Anderson RHP MIA to TB | |||
| Dellin Betances RHP NYA to NYN | Alex Avila C ARZ to MIN | |||
| JB Bukauskas RHP HOU to ARZ | Steve Cishek RHP CHN to CHA | |||
| Astrubal Cabrera 3B TEX to WAS | Dylan Cozens OF PHI to TB | |||
| Kole Calhoun OF LAA to ARZ | Travis Demeritte OF ATL to DET | |||
| Nicholas Castellanos OF DET to CHN | Jasson Dominguez of NYA INT | |||
| Jharel Cotton RHP OAK to CHN | Sam Dyson RHP SF to MIN | |||
| Zack Cozart 3B LAA to SF | Carl EdwardsJr RHP CHN to SEA | |||
| Jose De Leon RHP TB to CIN | Xavier Edwards SS SD to TB | |||
| Lucas Duda 1B KC to ATL | Maikel Franco 3B PHI to KC | |||
| Jake Faria RHP TB to MIL | Todd Frazier 3B NYN to TEX | |||
| Freddy Galvis SS TOR to CIN | Gio Gonzalez LHP MIL to CHA | |||
| Avisail Garcia OF TB to MIL | Yasmani Grandal STL to CHA | |||
| Sonny Gray RHP NYA tro CIN | Zack Greinke RHP ARZ to HOU | |||
| Shane Greene RHP DET to ATL | Cesar Hernandez 2B PHI to CLE | |||
| Did Gregorius SS NYA to PHI | Rich Hill LHP LAD to MIN | |||
| Will Harris RHP HOU to WAS | Bayron Lora OF TEX INT | |||
| Ryon Healy 3B SEA to MIL | Jordan Lyles RHP MIL to TEX | |||
| Daniel Hudson RHP TOR to WAS | Jose Martinez OF STL to TB | |||
| Nick Hundley C OAK to PHI | Mike Mayers RHP STL to LAA | |||
| Kwang-Hyon Kim LHP KOREA to STL | Erick Pena OF KC INT | |||
| Craig Kimbrel RHP BOS to CHN | Jose Peraza SS CIN to BOS | |||
| Mike Leake RHP SEA to ARZ | Robert Puason SS OAK INT | |||
| Matthew Libeatore LHP TB to STL | Yasiel Puig OF LAD/CIN to CLE | |||
| Josh Lindblom RHP KOREA to MIL | Anthony Rendon 3B WAS to LAA | |||
| Jonathan Lucroy C LAA to CHN | Hunter Renfroe OF SD to TB | |||
| Kevin Made SS CHN INT | Franmil Reyes OF SD to CLE | |||
| Luke Maile C TOR to PIT | Trevor Richards RHP MIA to TB | |||
| Jake Marisnick OF HOU to NYN | Tanner Roark RHP CIN to TOR | |||
| Chris Martin RHP TEX to ATL | Emmanuel Rodriguez OF MIN INT | |||
| Corbin Martin RHP HOU to ARZ | Joely Rodriguez LHP JAPAN to TEX | |||
| Wade Miley LHP HOU to CIN | Sergio Romo RHP MIA to MIN | |||
| Omar Narvaez C SEA to MIL | Trevor Rosenthal RHP STL to KC | |||
| Kristopher Negron 2B SEA to LAD | Hyun-Jin Ryu LHP LAD to TOR | |||
| Tommy Pham OF TB to SD | Travis Shaw 3B MIL to TOR | |||
| Rick Porcello RHP BOS to NYN | Julio Teheran RHP ATL to LAA | |||
| Ronnier Quintero C CHN INT | Yoshitomo Tsutsugo OF JAPAN to TB | |||
| Luis Rodriguez OF LAD INT | Arol Vera SS LAA INT | |||
| Josh Rojas 2B HOU to ARZ | Arodys Vizcaino RHP ATL to SEA | |||
| Hector Rondon RHP HOU to ARZ | Joey Wentz LHP ATL to DET | |||
| Jose Salas SS MIA INT | Matt Wisler RHP SD to SEA | |||
| Justin Smoak 1B TOR to MIL | ||||
| Drew Smyly LHP TEX to SF | to 16 January, 2020 | |||
| Eric Sogard SS/2B TB to MIL | ||||
| Ryne Stanek RHP TB to MIA | ||||
| Marcus Stroman RHP TOR to NYN | ||||
| Anthony Swarzek RHP SEA to ATL | ||||
| Blake Treinen RHP OAK to LAD | ||||
| Jonathan Villar 2B BAL to MIA | ||||