As with Cesc Fabregas, some players who go and play for foreign clubs improve on a cultural level. It makes them grow on many levels; intellectually, because you have to learn a new language and adapt to another culture, and on a footballing level too.
“Old minds are like old horses; you must exercise them if you wish to keep them in working order.”
“If I can add, say, 10 great new violin concertos to the repertoire before I'm done, that will be truly exciting.”