The 22-year-old opened the scoring with his second goal of the season but late dramas ensured the regulation time ended 2-2 before they proceeded to lose 4-2 on penalties.
Impressed by the team’s doggedness in the encounter, the forward took to the social media to laud the display while also thanking the fans for their show of solidarity.
“Great team performance but unlucky tonight and thanks to all the Watford fans that came out to support,” Success posted on Instagram.
The former Granada player has made eight appearances this term across all competitions involving two starts, coming in the League Cup.
He will be hoping to get more playing time under his belt when Watford take on Arsenal at the Emirates Stadium on Saturday.