Tottenham manager Jose Mourinho says he would "hate" anybody to say he had made an impact after their 3-2 victory at West Ham in his first game in charge.
"It's not about me, it's about the players and club.
"The most difficult thing for us was to match their energy," said Pochettino. "In the second half we were much better and matched them. I think they deserve one point.
"The reality is that, for different reasons, we are not showing the performances that we expect.
Gomes, 26, was tackled from behind by Son and appeared to be injured by an awkward fall which prompted an anguished reaction from players and fans close to the incident.
Former Everton winger Pat Nevin, who was the analyst for BBC Radio 5 Live at Goodison Park on Sunday, described the incident as "horrible".
Brighton manager Graham Potter: "Overall I was really, really happy with the performance. Great personality on the pitch, we attacked well, defended well.
"When we made mistakes we recovered, we created chances and played on the front foot as much as we could.
Maurcio Pochettino says he will shoulder the "blame" for Hugo Lloris' howler in 10-man Tottenham's 2-1 Premier League win over Southampton.
The France goalkeeper - and 2018 World Cup winner - was inexplicably dispossessed inside his own six-yard area by Danny Ings for Saints' equaliser following a back pass.
James Maddison's first league goal of the season helped Leicester come from behind to beat Tottenham in an absorbing encounter at the King Power Stadium
Tottenham Hotspur boss Mauricio Pochettino has "no complaints" with VAR after a marginal offside call proved key in their 2-1 defeat at Leicester City.
Arsenal staged a stirring comeback to earn a point in a chaotic, thrilling north London derby against Tottenham at Emirates Stadium.
Arsenal manager Unai Emery, speaking to BBC Sport: "It was an amazing match.
Newcastle got their first points under Steve Bruce as Joelinton's first-half goal gave them a shock 1-0 victory at Tottenham on Sunday.
Mauricio Pochettino: "I cannot find excuses because the transfer window is open.
FULL TIME: Ajax 2 Spurs 3
That is one of the great matches, one of the great comebacks, and surely Tottenham's best ever night in European football. Simply incredible. They have managed to pinch it at the last.
Bournemouth vs Tottenham Hotspur Highlights
Start date: 04. May 2019, 12:30
Location: Bournemouth Venue: Vitality Stadium
Referee: Craig Pawson, England
Nine-man Tottenham conceded an injury-time goal to lose 1-0 at Bournemouth, narrowly failing to hang on after having Son Heung-min and Juan Foyth sent off in a five-minute span around halftime
Goal by Aké at 90+1' gets Bournemouth a victory.