The Hoops boss stressed that any Setanta Sports Cup celebrations were cut short and that his players are completely focused on the league game against their Dublin rivals
The Hoops defeated Drogheda United by a score of 7-1 to lift the all-Ireland trophy at Tallaght Stadium on Saturday, May 11 and will face Dublin rivals St Pat's at Richmond Park on Tuesday, May 14
"This is a big game for us and we are very determined to do well in it," Croly told the club's official website.
"We were delighted to win the Setanta Sports Cup final on Saturday, but we were even more delighted with the performance and the convincing nature of the win.
"But the final is over, the cup is in the cabinet and we are now focused on the St Pat's game and playing as well as we did on Saturday again on Tuesday night.
"The players enjoyed the win, but all minds are now on what we know will be a tough game in Inchicore," he added.
Shamrock Rovers, who defeated the Saints by a score of 3-0 at Tallaght Stadium earlier in the season, will be without left back Conor Powell, while striker Mark Quigley is carrying a hamstring strain and is a doubt for the tie.
St Patrick's Athletic, meanwhile, will have a full panel to choose from, with manager Liam Buckley reporting that he has no injury concerns.
St Pat's have the opportunity to overtake Derry City and move into second place in the league should they earn a draw or a win. And Liam Buckley is hoping for a "good atmosphere" to help spur his side on to victory.
"There's always a good atmosphere in these fixtures and lots of passion will be seen so the players know what to expect," he told the club's official website.
"Hopefully our crowd will get down to Richmond in big numbers on Tuesday cause when they get behind the team, like we've seen in previous home matches against Rovers, they can make a huge difference for us."
St Patrick's Athletic host Shamrock Rovers at Richmond Park on Tuesday, April 14. Kick off 19:45 BST.