Teams
 | Saitama Seibu Lions |
2021 Roster |
Saturday, April 10, 2021
| No. | MANAGER | Born | Note | ||||
|---|---|---|---|---|---|---|---|
| 85 | Tsuji, Hatsuhiko | Oct. 24, 1958 | |||||
| No. | PITCHERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 67 | Awatsu, Kaito | Mar. 1, 1997 | 180 | 88 | R | R | |
| 98 | Dermody, Matt | Jul. 4, 1990 | 196 | 102 | L | R | |
| 30 | Enokida, Daiki | Aug. 7, 1986 | 180 | 90 | L | L | |
| 33 | Garrett, Reed | Jan. 2, 1993 | 188 | 95 | R | R | |
| 20 | Hamaya, Shota | Jan. 26, 1999 | 175 | 77 | L | L | |
| 25 | Hirai, Katsunori | Dec. 20, 1991 | 180 | 86 | R | R | |
| 45 | Honda, Keisuke | Apr. 24, 1993 | 180 | 80 | R | R | |
| 11 | Imai, Tatsuya | May 9, 1998 | 180 | 70 | R | R | |
| 41 | Inoue, Hiroki | Jul. 17, 2001 | 181 | 82 | R | R | |
| 36 | Itoh, Sho | Feb. 10, 1999 | 177 | 74 | R | R | |
| 14 | Masuda, Tatsushi | Apr. 23, 1988 | 180 | 88 | R | R | |
| 17 | Matsumoto, Wataru | Nov. 28, 1996 | 176 | 87 | R | R | |
| 47 | Matsuoka, Kouki | Aug. 31, 2000 | 180 | 81 | R | R | |
| 16 | Matsuzaka, Daisuke | Sep. 13, 1980 | 182 | 92 | R | R | |
| 15 | Miyagawa, Tetsu | Oct. 10, 1995 | 177 | 85 | R | R | |
| 28 | Moriwaki, Ryosuke | Jul. 13, 1992 | 175 | 70 | R | R | |
| 50 | Nakatsuka, Shunta | Dec. 26, 1994 | 191 | 102 | R | R | |
| 54 | Neal, Zach | Nov. 9, 1988 | 191 | 95 | R | R | |
| 29 | Ogawa, Ryuya | Sep. 3, 1991 | 182 | 85 | L | L | |
| 59 | Omagari, Ren | May 21, 1998 | 179 | 78 | R | R | |
| 57 | Saito, Hiromasa | Jun. 3, 1995 | 178 | 80 | L | L | |
| 34 | Sano, Yasuo | Jan. 18, 1993 | 177 | 90 | L | L | |
| 26 | Sasaki, Takeru | May 13, 1996 | 179 | 87 | L | L | |
| 61 | Taira, Kaima | Nov. 15, 1999 | 173 | 100 | R | L | |
| 13 | Takahashi, Kona | Feb. 3, 1997 | 190 | 105 | R | R | |
| 48 | Takekuma, Shota | Nov. 24, 1989 | 180 | 90 | L | L | |
| 40 | Tamura, Ichiro | Sep. 19, 1994 | 173 | 86 | R | L | |
| 21 | Togame, Ken | Nov. 7, 1987 | 183 | 88 | R | R | |
| 64 | Uema, Towa | Jan. 31, 2001 | 180 | 79 | R | R | |
| 27 | Utsumi, Tetsuya | Apr. 29, 1982 | 186 | 93 | L | L | |
| 12 | Watanabe, Yutaro | Sep. 21, 2000 | 191 | 91 | R | R | |
| 43 | Yoshikawa, Mitsuo | Apr. 6, 1988 | 178 | 79 | L | L | |
| 44 | Yoza, Kaito | Sep. 15, 1995 | 173 | 78 | R | R | |
| No. | CATCHERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 62 | Komazuki, Hitoto | Apr. 21, 1993 | 176 | 97 | R | R | |
| 38 | Makino, Shoya | Mar. 4, 2001 | 178 | 80 | R | L | |
| 10 | Mori, Tomoya | Aug. 8, 1995 | 170 | 85 | R | L | |
| 2 | Okada, Masatoshi | Jun. 30, 1989 | 173 | 80 | R | R | |
| 78 | Saito, Masato | Aug. 7, 1995 | 180 | 86 | R | L | |
| 37 | Tsuge, Sena | Jun. 3, 1997 | 174 | 88 | R | R | |
| No. | INFIELDERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 6 | Genda, Sosuke | Feb. 16, 1993 | 179 | 75 | R | L | |
| 56 | Kawano, Ryota | Jun. 28, 2001 | 178 | 78 | R | S | |
| 99 | Mejia, Ernesto | Dec. 2, 1985 | 198 | 118 | R | R | |
| 60 | Nakamura, Takeya | Aug. 15, 1983 | 175 | 102 | R | R | |
| 31 | Satoh, Ryusei | Jan. 15, 1997 | 174 | 88 | R | R | |
| 22 | Spangenberg, Cory | Mar. 16, 1991 | 183 | 89 | R | L | |
| 5 | Tonosaki, Shuta | Dec. 20, 1992 | 177 | 82 | R | R | |
| 63 | Tsunashima, Ryusei | Jan. 21, 2000 | 178 | 78 | R | L | |
| 49 | Tysinger, Brandon Taiga | Jun. 15, 1998 | 179 | 84 | R | R | |
| 8 | Watanabe, Kento | Dec. 26, 1998 | 176 | 112 | R | R | |
| 39 | Wu, Nien-Ting | Jun. 7, 1993 | 178 | 75 | R | L | |
| 52 | Yamada, Haruka | Sep. 30, 1996 | 180 | 84 | R | R | |
| 3 | Yamakawa, Hotaka | Nov. 23, 1991 | 176 | 103 | R | R | |
| 32 | Yamamura, Takayoshi | Sep. 28, 2002 | 180 | 86 | R | L | |
| 4 | Yamanobe, Kakeru | May 24, 1994 | 170 | 74 | R | R | |
| No. | OUTFIELDERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 7 | Kaneko, Yuji | Apr. 24, 1990 | 179 | 76 | R | S | |
| 72 | Kawagoe, Seiji | Jun. 30, 1993 | 174 | 80 | L | L | |
| 9 | Kimura, Fumikazu | Sep. 13, 1988 | 183 | 86 | R | R | |
| 68 | Kishi, Junichiro | Dec. 8, 1996 | 174 | 82 | R | R | |
| 58 | Kumashiro, Masato | Apr. 18, 1989 | 175 | 77 | R | R | |
| 1 | Kuriyama, Takumi | Sep. 3, 1983 | 177 | 85 | R | L | |
| 66 | Nakamigawa, Yuta | Oct. 22, 2002 | 180 | 90 | R | L | |
| 51 | Nishikawa, Manaya | Jun. 10, 1999 | 180 | 82 | R | L | |
| 46 | Suzuki, Shohei | May 20, 1998 | 175 | 78 | L | L | |
| 73 | Takagi, Wataru | Dec. 6, 1999 | 181 | 81 | R | L | |
| 53 | Takeda, Aito | Apr. 6, 1997 | 177 | 92 | R | R | |
| 65 | Togawa, Daisuke | Apr. 29, 1996 | 188 | 90 | R | L | |
| 35 | Wakabayashi, Gakuto | Apr. 13, 1998 | 177 | 72 | R | R | |
Developmental Squad
| No. | PITCHERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
|---|---|---|---|---|---|---|---|
| 121 | Akagami, Yuto | Feb. 10, 1999 | 177 | 81 | R | R | |
| 120 | Idei, Toshihiro | Apr. 29, 1997 | 185 | 75 | R | R | |
| 124 | Mameda, Taishi | Jan. 15, 2003 | 173 | 82 | R | R | |
| 128 | Mizukami, Yoshinobu | Jul. 13, 1998 | 176 | 81 | R | R | |
| 126 | Ohkubo, Jiyu | Aug. 2, 2000 | 199 | 96 | R | R | |
| 118 | Tawata, Shinsaburou | Apr. 13, 1993 | 182 | 82 | R | R | |
| 125 | Tohno, Aoi | Nov. 30, 1996 | 183 | 85 | L | L | |
| No. | CATCHERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 127 | Nakaguma, Daichi | Aug. 27, 1996 | 174 | 87 | R | L | |
| No. | INFIELDERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 122 | Hasegawa, Shinya | May 17, 2002 | 183 | 80 | R | R | |
| No. | OUTFIELDERS | Born | Ht.(cm) | Wt.(kg) | T | B | Note |
| 123 | Miyamoto, Joseph Ken | Mar. 24, 1999 | 175 | 88 | R | R |