Click on a young player. Note his OVR (e.g., 64). Scan for 64 as a 2-byte or 4-byte integer. Perform a "Increased/Decreased value" scan after training. Locate the address. Change it to 99 . If his attributes stay at 99 after you click on another player and return? The player editor is verified.
18;write_to_target_document1b;_TbPsaZGdFImvwPAPk5eT0Qg_100;4ae;0;6b3; 0;26c;0;7e9; 18;write_to_target_document7;default0;1a4; 0;36c9;0;71; fifa manager 14 cheat engine verified