Villa, without a home win in the Premier League, host Swansea on Saturday.
In 2006, when the league hosted a "concussion summit" in Chicago, Omalu wasn't invited.
Sunderland, who have lost their last three matches and are bottom of the Premier League, host Arsenal in the early kick-off on Saturday.
Super League hosts its annual get together at the Etihad Stadium next Saturday and Sunday (all games shown on Sky Sports) and it's heading for a record attendance.
At the start of a town hall meeting the league hosted at Queens Theater in Flushing Meadows-Corona Park, soccer fans chanted, hopped up and down, and danced to the beat of Latin music.
Swansea, eighth in the Premier League, host Tottenham Hotspur at the Liberty Stadium next Sunday.
Swansea City, who are eighth in the Premier League, host 15th-placed Hull City on Saturday.
United, fourth in the Premier League, host Tottenham, three points behind in sixth, on Sunday, kick-off 16:00 GMT.
The Blues, who hold a five-point lead in the Premier League, host Southampton at Stamford Bridge on Sunday.
It was a pulsating game at the Britannia Stadium and the League One side needed to show plenty of character to see off their Premier League hosts.
The Cup holders won comfortably enough in the end, but they did not have it all their own way against their Premier League hosts.
