I wonder if this could be The Likeaballs, a cartoon series shown on Children's BBC in 2006.
It deals with a race of football shaped aliens - the Likeaballs - who are completely obsessed with football. They all have names that end in -ball, such as Kickaball, Invicniball, and Knowledgaball, and their exploits are commented on by two sportscasters, Dan and Pam.
This approachaball series focuses on the exploits of Team Likeaball,
an odd assortment of ball-shaped aliens who are just mad about the
Beautiful Game. Seriously, they'll play football anywhere, against
anyone or thing. Hence a stream of mis-shaped and mismatched teams
take up the challenge. Their opponents include plundering pirates,
a bounty-hunting robot, a ruthless virus, even a giant's fingers!
But their most fearful opposition comes in the form of The
Dislikeaballs. These folks are the mirror image of our heroes, a
most disreputaball bag of balls who are determined to deflate the
efforts of our heroes at every turn. Fortunately for everyone, they
can only ever puncture their own plans. You see, they just don't
have that all-important team spirit.