Emily Cassap described scoring on her Northern Ireland senior debut as "probably the best goal I have ever scored" after the Sunderland midfielder lit up Windsor Park with a stunning strike just 66 seconds after coming off the bench against Switzerland.

Northern Ireland were 2-0 down with five minutes remaining, having conceded to Geraldine Reuteler and Smilla Vallotto, when the teenager was introduced as a substitute. What followed was the sort of moment that debuts are made of. Cassap barely had time to find her bearings before she pulled one back with a hit that belied her inexperience at this level.

"I was so surprised when the ball came to me, I just thought 'let's hit it' and I'm so glad it went in," Cassap told BBC Sport NI. "I think it's probably the best goal I've scored, I just thought I'll have a go and it was unbelievable."

Despite the result going against Michael McArdle's side, Cassap was keen to credit the collective effort, acknowledging Switzerland's quality while insisting Northern Ireland more than held their own. "They moved the ball really well and were really clever with the play, but I think we really went toe-to-toe with them and gave them a good fight," she said. "Unfortunately we couldn't get a result, but I thought we played really well."

A switch that has already paid dividends

This international window was Cassap's first senior camp after she made the decision earlier this year to switch her international allegiance from England, where she had represented the country at underage level, to Northern Ireland, for whom she qualifies through parentage. The move appears to have been a sound one for both player and nation.

Cassap had already caught the eye at Under-19 level for Northern Ireland, impressing in a short space of time before earning her call-up to McArdle's senior squad. The manager has now handed senior debuts to two players in back-to-back international windows, with Linfield's Cora Chambers having made her first appearance during the previous camp.

For Cassap, the occasion carried additional personal significance. "Lots of my family live in Belfast so they all came out to support, so I think they're all delighted," she said. "It's just been a great experience overall being in camp and I was really delighted to get my debut — and that's just a bonus."

McArdle, for his part, offered warm praise. "He said it's a great goal," Cassap added with evident delight.

A bright future taking shape

At club level, Cassap plies her trade with Sunderland, and it is clear that her development is on an upward trajectory. Moments like these — a debut goal against top European opposition — have a habit of shaping careers, and the confidence she will carry back to Wearside should not be underestimated.

Northern Ireland may not have taken anything from the game against Switzerland, but they will head home from this international window with the knowledge that a new talent has announced herself emphatically on the senior stage. For a programme that continues to build under McArdle, that is no small thing.

Frequently asked

Who is Emily Cassap and what club does she play for?
Emily Cassap is a teenage midfielder who plays her club football at Sunderland. She recently switched her international allegiance from England to Northern Ireland, for whom she qualifies through parentage.
Why did Emily Cassap switch from England to Northern Ireland?
Cassap had previously represented England at underage level but switched her international allegiance to Northern Ireland earlier in 2025. She qualifies for Northern Ireland through parentage and had already represented the country at Under-19 level before earning her senior call-up.
What was the result of Northern Ireland vs Switzerland in the women's international?
Northern Ireland lost the match to Switzerland. They went 2-0 down before Emily Cassap's debut goal reduced the deficit, but they were unable to recover the result.