Arsenal went undefeated in the 2003-2004 premier league season
There are many Gaelic Football cups. The most important and the one you are probably referring to is the Sam Maguire Cup. It is presented to the winners of the All-Ireland Senior Football Championship.
Probably never, he will have his streak until the day he retires.
Antique Roadshow had one that had signatures from Green Bay championship team. Including Bart Starr and Vince Lombardi. They appraised it at $5000-$6000. So just the football would probably be quite a bit less than that.
Football is probably more popular. (That's soccer, not American Football!)
probably Chelsea football academy
Football probably and I play lacrosse.
at a school for football probably Ohio state or Florida
Another word for championship could be tournament. I know some other but that would probably be the best one.
Probably Oregon and Auburn