For long spells, the Hornets more than held their own against Arsene Wenger’s men and defender Laurent Koscielny had to be at his very best to stop the hosts from opening the scoring.
However, the Gunners picked up the pace in the second half and finally broke the deadlock before adding another two goals in a devastating 11-minute spell.
Speaking after the match, Cathcart said that felt his side competed well but eventually succumbed to Arsenal’s exceptional movement and relentless pace on the counter.
“We put up a good fight for 60 minutes, but Arsenal are a top-quality team when they find the spaces and pick you off,” the defender told the Mirror.
“Their movement is exceptional because they pull you out of position - you don't know whether to stick with them and leave a gap behind you or stay at home.”
Counterattacking football at its best
Arsenal have struggled at times this season when facing teams who sit deep and squeeze the space.
However, once they have their noses in front, there isn’t another team quite like them in the Premier League and some of their counter-attacking football has been a delight to watch.
Alexis Sanchez, Mesut Ozil and Theo Walcott are beginning to form a real understanding and they’ve become masters in the art of working and exploiting the spaces in front of them.
Manchester United and Watford are the latest two teams unable to live with the Gunners on such form and they certainly won’t be the last long before the season finishes next May.