Being from Indiana, I'd like to make sure everyone is aware of some of the restrictions on buying beer / wine or alcohol on Sundays in Indiana.
You can't.
Bars and restaurants can still sell drinks on Sundays, but there is no retail sales of any kind allowed on Sunday. The only exceptions to this are wineries or places that make on their own site.
Also on Sunday most bars and restaurants will close around Midnight. Some may be staying open later due to the games being in town.
If you are planning to drink at your hotel on Sunday before or after the games, the best advice I can give you is to buy it on Saturday.
Enjoy your visit to our fine city......