Holland and Daryl Janmaat are preparing to face World Cup winners France.
Watford defender Daryl Janmaat said:
“It’s better to see the French now, then you know where you stand.
“France has a very complete team, with lots of qualities. That Kylian Mbappé is really a world-class talent, such a footballer comes by once every few years. I can enjoy that.
“Nice to start measuring with such a team now.”