Out
                                            Injury Shoulder
                                                Est. Return 2/1/2026
                                        2025 Stats
                    AVG
                                .000
                            HR
                                0
                            RBI
                                0
                            R
                                0
                            SB
                                0
                            Rest-of-Season Projections
                    
                2025 Fantasy Outlook
                
                    Once seen by some as a better prospect on the mound, Rainer showed up to his senior season for Harvard-Westlake with more strength and athleticism en route to solidifying his standing as one of the best prep position players in the 2024 class. He landed with the Tigers at No. 11 overall but did not play in official games after signing. The 6-foot-3 lefty-hitting shortstop showcased plus all-fields power potential and borderline plus speed as an amateur. He should stick at shortstop for the foreseeable future, but if he does need to move to third base, his plus arm would allow him to handle the hot corner with ease. Scouts praise Rainer's hitting ability, and while he is generally considered to be power-over-hit, the expectation is that he'll hit for plus power with a decent average. Read Past Outlooks                
                                        
                                     
                  Done for 2025
Rainer will undergo season-ending surgery after dislocating his right shoulder during Single-A Lakehead's win over Daytona on Tuesday, Evan Petzold of the Detroit Free Press reports.
                  Analysis
The 19-year-old shortstop suffered the injury while diving back to first base on a pickoff attempt. After receiving multiple opinions, the injury was determined to be severe enough to necessitate surgery, but Rainer is expected to be fully healthy for the start of spring training. He'll end the season with a .294/.383/.452 slash line with nine steals, five home runs and 22 RBI across 149 plate appearances at Single-A.
              The 19-year-old shortstop suffered the injury while diving back to first base on a pickoff attempt. After receiving multiple opinions, the injury was determined to be severe enough to necessitate surgery, but Rainer is expected to be fully healthy for the start of spring training. He'll end the season with a .294/.383/.452 slash line with nine steals, five home runs and 22 RBI across 149 plate appearances at Single-A.
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Minor League Left/Right Batting Splits (A)
                
    Since 2023
                                    +2%
                        OPS vs RHP
                    2025
                                    +7%
                        OPS vs LHP
                    | OPS | PA | HR | RBI | AVG | |
|---|---|---|---|---|---|
| Since 2023vs Left | .851 | 24 | 1 | 4 | .286 | 
| Since 2023vs Right | .865 | 116 | 4 | 18 | .302 | 
| 2025vs Left | .762 | 24 | 1 | 4 | .286 | 
| 2025vs Right | .710 | 116 | 4 | 18 | .302 | 
| 2024vs Left | 0 | 0 | 0 | 0 | 0 | 
| 2024vs Right | 0 | 0 | 0 | 0 | 0 | 
| 2023vs Left | 0 | 0 | 0 | 0 | 0 | 
| 2023vs Right | 0 | 0 | 0 | 0 | 0 | 
Prospect Rankings History
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        More Fantasy News
     
                  Suffers shoulder injury Tuesday
Rainer was removed Tuesday from Single-A Lakeland's 4-3 win over Daytona after injuring his right shoulder while diving back to first base on a pickoff attempt, Lynn Henning of The Detroit News reports.
                  Analysis
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                  Snagged by Tigers
The Tigers have selected Rainer with the 11th overall pick in the 2024 First-Year Player Draft.
                  Analysis
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