Ryan Manning is confident the "floodgates will open" once the Republic of Ireland finally end their goal drought.

Swansea defender Manning made his senior international debut in Wednesday night's 0-0 Nations League draw with Bulgaria in Dublin which saw Ireland extend their barren run to 660 minutes of football since Shane Duffy scored a late equaliser against the same opposition in Sofia.

Stephen Kenny's men avoided relegation as a result but they are yet to win in eight attempts under their new manager, whose blueprint for future success has been called into question by some during a bruising start to his tenure.

Manning, who was a late addition to the squad in the midst of a selection crisis, said: "I suppose you don't really have to be in the group to realise it has been a tough spell.

"Although we are not winning a lot of games and not scoring has been an issue, I think the other side of things... we are keeping clean sheets and we are building on solid foundations.

"It's one of those things. When the first goal does come, they will probably all come at once, the floodgates will open.

"It's going to be a period where we have to show a bit of resilience and battle through it and when everything does finally click, hopefully it will all come together."

Manning, 24, was drafted into the squad ahead of the Bulgaria game after coronavirus withdrawals, injuries, suspensions and James McCarthy's absence following the death of his father had decimated Kenny's initial 26-strong party.

The wing-back was the fifth man to win a first senior cap during the autumn fixtures, following in the footsteps of under-21 players Adam Idah, Jayson Molumby, Dara O'Shea and Jason Knight, and he believes the injection of new blood can only be a good thing for the nation.

He said: "That's nothing but good for the squad in general. The more people that have made their debuts and have shown they are capable of playing international football, the more competitive it is and that will just benefit everyone within the squad and the Irish team as a whole.

"The more that are making their debuts and who are showing they can play at this level, the merrier."

Manning will now return to the club he joined from QPR last month and fight for a regular starting berth to strengthen his claims on a continued presence in the Ireland set-up.

He said: "We have two or three months before the next games in March but we have tough fixtures at club level, so the thing is to get into the Swansea team and play as much football as I can between now and then and hopefully I can stay in the gaffer's thoughts come March."