Greg Clarke said UEFA's three-step protocol on tackling racism could be improved.
A Birmingham supporter was jailed for 14 weeks for running on to the field of play and punching Grealish later on in the match.
Fifty people died in the attack on two mosques in New Zealand.
The English FA said Snodgrass has been charged with a breach of FA Rule E3(1).
Sampson brought a case for unfair dismissal against the FA after they ended his contract for 'inappropriate and unacceptable behaviour.'
Hennessey has won 81 caps for Wales and helped his country to the Euro 2016 semi-finals.
Appointed in March 2015, Glenn oversaw the men's senior team's rise from a poor Euro 2016 campaign to a run to the World Cup semi-finals this year in Russia.
The charity match will raise funds for the Wayne Rooney Foundation, which aims to improve the lives of disadvantaged children.
The Portuguese coach was reported to have directed an insult in his native language towards a camera which was live tracking him down the touchline.
FA Chief Executive Martin Glenn said the action was being taken because security forces had informed the FA Wembley is a prime target.
Mourinho's punishment, if found guilty, could include a touchline ban, which would mean him sitting in the stands for the game against his former club Chelsea at Stamford Bridge on Saturday.
The FA says Newcastle United's manager has been charged for his pre-match comments about the referee.
Jibril Rajoub urged Palestinians to burn shirts bearing the name of Lionel Messi if Argentina's star went ahead and played there.
The Premier League had previously been the only major European football league without a winter break.
Alonso hada ppeared to stand on the back of Southampton striker Shane Long's leg during Saturday's game but the incident went unpunished by referee Mike Dean.
Tottenham Hotspur also books their place in the last four in more emphatic fashion thanks to Christian Eriksen's double in a 3-0 win at Swansea to make light of Harry Kane's absence through injury.