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| Name | Team | Age |
| Frank Klaus | Retired (2027, Age 34) | Died (2065, Age 73) |
| Drafted | Position | Bats/Throws |
| Round 2, Pick 19 (2014) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Mike Piazza League | 0 | 10 years (48 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor Value
|
|
| Health
|
Injured Days
|
Birthday |
| 0 | 12/10/1992 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 0 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Year | Type
|
Chances
|
Endurance | Velocity | Control | Total |
| 2014 | Minors | 39.00 | 0 / 3 | 3 / 17 | 6 / 19 | 9 / 39 |
| 2014 | Majors | 3.90 | 0 / 0 | 0 / 1 | 0 / 2 | 0 / 3 |
| 2015 | Minors | 20.00 | 0 / 1 | 1 / 13 | 2 / 6 | 3 / 20 |
| 2016 | Minors | 22.00 | 0 / 3 | 2 / 11 | 1 / 8 | 3 / 22 |
| 2016 | Majors | 8.57 | 0 / 0 | 0 / 7 | 0 / 1 | 0 / 8 |
| 2017 | Majors | 37.68 | 1 / 2 | 2 / 19 | 6 / 16 | 9 / 37 |
| 2018 | Majors | 38.95 | 0 / 3 | 3 / 16 | 2 / 19 | 5 / 38 |
| 2019 | Majors | 51.36 | 5 / 18 | 1 / 12 | 1 / 21 | 7 / 51 |
| 2020 | Majors | 43.93 | 1 / 4 | 1 / 14 | 1 / 25 | 3 / 43 |
| 2021 | Majors | 53.59 | 2 / 17 | 1 / 15 | 1 / 21 | 4 / 53 |
| 2022 | Majors | 29.99 | 0 / 2 | 1 / 13 | 0 / 14 | 1 / 29 |
| 2023 | Majors | 43.63 | 2 / 13 | 0 / 13 | 2 / 17 | 4 / 43 |
| 2024 | Majors | 44.29 | 0 / 10 | 0 / 19 | 0 / 15 | 0 / 44 |
| 2025 | Majors | 43.78 | 0 / 6 | 0 / 22 | 0 / 15 | 0 / 43 |
| 2026 | Majors | 44.17 | -2 / 8 | -7 / 19 | -3 / 17 | -12 / 44 |
| 2027 | Majors | 25.00 | 0 / 0 | 0 / 10 | 1 / 15 | 1 / 25 |
| Total | 9 / 90 | 8 / 221 | 20 / 231 | 37 / 542 |
| Date | Transaction |
| 2027-11-01 | Frank Klaus has retired from the Free Agency Pool |
| 2027-04-01 | The Boston Patriots have promoted Ken Niekro to the major league team. The Boston Patriots have promoted Dave Roberts to the major league team. The Boston Patriots have waived Bob Troy. The Boston Patriots have waived Frank Klaus. |
| 2026-06-09 | Frank Klaus of the Boston Patriots is injured and is expected to be out 17 days. |
| 2022-08-28 | Frank Klaus of the Boston Patriots is injured and is expected to be out 30 days. |
| 2020-06-16 | Frank Klaus of the Boston Patriots is injured and is expected to be out 26 days. |
| 2016-08-29 | The Boston Patriots have promoted Frank Klaus to the major league team. |
| 2016-06-22 | The Boston Patriots have acquired Frank Klaus from the waiver wire. |
| 2016-06-15 | The Milwaukee Crullers have waived Frank Klaus. |
| 2014-05-21 | The Milwaukee Crullers have acquired Frank Klaus from the waiver wire. |
| 2014-04-21 | The Colorado Grizzlies have waived Frank Klaus. |
| 2014-04-01 | The Colorado Grizzlies have promoted Frank Klaus to the major league team. The Colorado Grizzlies have promoted Dan Whitman to the major league team. |