Training matches at the end of season

[ma-xr]

hello everyone,
i am wondering about the games you play at the end of each season in ML against some weak and lame teams (aik, basel, vitoria plezen ... etc)
is there any way to change this teams to stronger teams like man u, madrid, barça ... is there a tool or something to edit this , because some times i play against a weak team in june and i meet it again in august.
so do you think there is a way to edit this ?
ps : my team is 1st on club ranking .