If you mean Champions leagues, Then Its Real Madrid, with 9
Location : North London, League: English Premier League
Arsenal did but no London club has reached it.
It has lots of teams and they play in competitions. They have a league known as the Greater London Softball Mixed League for example.
Marseille were the first team to win the Champions League since it became a league format.
Aviva Premiership. England
Their first year as a baseball team was in 1936 as a PCL minor league team. Their first year as a major league team was 1969
Jackie Robinson's first major league team was the Brooklyn Dodgers.
Brazil have won the world cup five times.
There is not a hockey team in the National Hockey League that plays out of the Score Centre. There is a sports site that is called the Score Centre and there is an arena in London called Score Centre that is home to a London football team.
The first team to do that in the Premier League was Chelsea.