The Austrian went to watch his former team win 6-2 in a relegation six-pointer.
Once such player was Austrian defender Sebastian Prodl.
He arrived from German side Werder Bremen on a free transfer in the summer and has been a key member of the Watford side that have staved off relegation this season.
Unfortunately, his former team Bremen have not yet secured their Bundesliga survival.
On Monday he took advantage of a day off to go and watch his former team in action against fellow relegation strugglers VfB Stuttgart at the Weserstadion and he picked a great day to go.
The weather was great and so was the football – as Bremen won 6-2.
Speaking after the game the Watford defender gushed to Kreiszeitung about the result:
"I am pleased enormously that that helped. It was a mad night!
"The journey has been worth it.
“Great weather, eight goals, a lot of friends met - it was perfect.
"The pressure before the game was brutal. Then bring such an exemplary performance in a relegation battle, which is phenomenal. Everyone was ready, everyone gave everything.”
Prodl, who has featured 22 times for Watford this season, will now be hoping that Bremen can stay out of the relegation zone for the time being.
As for the rest of his season at Watford, he has recently found himself on the bench more regularly than usual and will be hoping to push on and play more regularly ahead of the European Championships this summer.