Check out this outstanding GTA MOD by KeGamingTv who created Barcelona superstars Lionel Messi and Neymar Jr. in GTA 5 and even did a crossbar challenge.
The video is quite long and the first couple of minutes is just Neymar cruising around Los Santos looking to pick up Messi (which is weird to see in GTA.)
If you want to skip to the crossbar challenge simply fast forward to 5 minutes in and see what happens when Brazil’s no.10 attempts the crossbar challenge at a sports field in Los Santos.