This is actually a really good question, and I hadn't thought of that before. Based on my experience with spirit guides, there is a lot of play that can go on, like gentle pushing. I have seen a family group come together on the streets of a sort of ethereal city and form a party - very similar in appearance and energy to Mardi Gras - to cheer up another spirit, so there's definitely a chance other spirits would group together for things like sports. It'd be interesting to see what they come up with: do spirits use the same rules as the physically-bodied? Do they have more, or less, rules to accommodate abilities like being able to fly? I should think that in the vast existence that is the afterlife - and from how cultures like the Greeks spoke of their Gods playing games - there must be someone, somewhere, arranging teams and playing sports.
"Sometimes you will act as an angel to someone else, perhaps without even knowing it. One day someone comes up to you and says, "You saved my life." You look at her astonished, trying to remember when you even saw the person before, the meeting meant so little to you at the time. "Don't you remember? I was standing on the bridge, staring at the water, and you passed and said, 'Good morning'."