Third Selection Arc is the fourth arc of the Blue Lock Manga Series.
The remaining 35 players have to chose a team of "A", "B" and "C" to prove their skills and coexistence with the top six Blue Lock players: Rin, Shidou, Karasu, Otoya, Yukimiya and Nagi. The best eleven players will be chosen to form the Blue Lock 11 to challenge Japan's U-20 team.
|Team A||Team B||Team C||Result|
|A1: Isagi, Hiori, Nanase||B1: Chigiri, Saramadara, Shiguma||-||5 - 4 (Team A wins)|
|A2: Igaguri, Aryu, Ishikari||-||C1: Reo, Gagamaru, Tanaka||5 - 3 (Team A wins)|
|-||B2: Baro, Niko, Raichi||C2: Wanima, Keki, Himizu||5 - 3 (Team B wins)|
|A3: Bachira, Nishioka, Haichi||B3: Yuzu, Sokura, Hiiragi||-||5 - 2 (Team A wins)|
|A4: Aoshi, Seira, Kurona||-||C3: Bachira, Zantetsu, Sadouji||5 - 4 (Team A wins)|