The 20-year-old opened the scoring in a 7-0 rout, after taking a pass from Anderlecht's Joshua Zirkzee. This afternoon's appearance in Victoria Stadium, Gibraltar, was his first start for the Under 21s and he has now represented his country at every age group from Under 16s upwards.
Victory made it 13 points from five European Championship qualifications for Erwin van de Looi's youngsters and he was pleased with Summerville and fellow new faces Wouter Burger, of FC Basel, and Wolfsburg's Micky van de Ven.
The trio are helping to keep more established players on their toes, says van de Looi.
"I look back on the first months with this group with a good feeling," he said.
"You can see that a number of players are developing well and we are also getting stronger across the board. This time we had Wouter Burger, Crycencio Summerville and Micky van de Ven. three new guys. They left a good impression on me. This means that the players who were there at the start are also put on edge."
Other goals in the win came from Zirkzee (2), Wolves defender Ki-Jana Hoever, RB Leipzig's Brian Brobbey and Hertha BSC duo Jurgen Ekkelenkamp and Daishawn Redan.
Summerville has enjoyed a bright start to the 2021/22 campaign, his second as a Leeds United player since signing from Feyenoord.
He shone for Mark Jackon's Under 23s last season with six goals and six assists in Premier League 2 action, without making a senior breakthrough.
An impressive pre-season and the departure of Helder Costa has put him squarely in the first team picture however. Since a Premier League debut away at Newcastle United as a substitute, Summerville has come off the bench against West Ham United, Southampton and Wolves. The latter was arguably his brightest display for Bielsa's side.
He has also featured in the Carabao Cup against Arsenal and Fulham and scored twice in seven Premier League 2 outings.

1. Lingard price revealed
Newcastle United have been told they can sign January target Jesse Lingard for £10m when the transfer window reopens at the turn of the year. (The Northern Echo) (Photo by Naomi Baker/Getty Images) Photo: Naomi Baker

2. Tarkowski touted as ideal Spurs signing
Frank McAvennie insists Antonio Conte’s first Tottenham signing will be a central defender like Burnley star James Tarkowski. (Football Insider) (Photo by Jan Kruger/Getty Images) Photo: Jan Kruger

3. Hazard touted for Toon move
Eden Hazard would be perfectly suited to a move to Newcastle in the January transfer window and should make the switch, according to former Belgium forward Marc Degryse. (Het Laatste Nieuws) (Photo by Laurence Griffiths/Getty Images) Photo: Laurence Griffiths

4. Chelsea want Rabiot
Newcastle United are now facing competition from Thomas Tuchel’s Chelsea for Juventus central midfielder Adrien Rabiot. (Calciomercato) (Photo by Pier Marco Tacca/Getty Images) Photo: Pier Marco Tacca

5. Spurs want De Ligt
Matthijs De Ligt is wanted by new Tottenham manager Antonio Conte. (Calciomercato) (Photo by Valerio Pennicino/Getty Images) Photo: Valerio Pennicino

6. Everton don't want Ramsey
Everton have decided against a move for unwanted Juventus midfielder Aaron Ramsey. (Il BiancoNero) (Photo by Richard Heathcote/Getty Images) Photo: Richard Heathcote

