Watching the U20 WC on ESPN here and Uruguay v Iraq has gone to extra timr, after 98 minutes "normal" time. Both sides have used all 3 subs.
The thought occurred to me that, especially with U20, but maybe with all such games, if you've made your 3 subs in regulation you get one more to make in the 30 mins extra time. Would take care of exhaustion, injuries etc. and maybe encourage teams to keep going in the last 10 mins of normal time rather than "save" a sub for ET.
Thoughts?