According to FIFA the youngest player in a world cup game was Mario Mendez of Uruguay, who played at the 1954 tournament at the age of 16 years, 1 month and 5 days. The youngest player in the round of finals was midfielder/striker Norman Whiteside (Northern Ireland vs Yugoslavia 1982) at 17 years 41 days. The youngest player to appear in the final game was Pele (Brazil vs Sweden 1958) at 17 years 249 days.
Most likely the youngest player to play in the champion league is Lionel Messi of Argentina, and Barcelona.
The youngest hockey player was most likely a 2-year-old. There are several talented children that are capable at playing a sport at this age, so it's likely that the youngest person to play hockey was 2.
Norman Whiteside is the youngest player to appear in a World Cup, when he debuted for Northern Ireland aged 17 years and 41 days at 1982 FIFA World Cup.
Kobe Bryant at the age of 19
The 17-year old Feller became the youngest player ever to play a regular season game.
Kobe Bryant he was 17
The youngest player to play an AFL/VFL game was Tim Watson for the Essendon Football Club.
That is Dwight Gooden of the New York Mets who was 19 years, 7 months old when he pitched two scoreless innings in the 1984 MLB All Star game.
The oldest player to play in an All-Star Game was Satchel Paige at 47 years, seven days in 1953.
Venezuelan shortstop Chico Carrasquel was the first Latin American player to play in an MLB All-Star game.
The Los Angeles Lakers Andrew Bynum who at 17 years 244 days was the youngest player drafted and at 18 years, 6 days was the youngest to play in an NBA game (November 2, 2005)
The youngest player to play for England is Michael Owen.
Mita Klima was the youngest player at age 13. Mita Klima was the youngest player at age 13 and was from Austria.
You play the minigames on multi-player.