The Cork native played his school's rugby with PBC.
Niall captained the Ireland U20s at the 2012 Junior World Championships in South Africa and made his British and Irish Cup debut in January 2013 against Aberavon RFC. He secured a development contract for season 2013/14 after completing two years of the academy programme while his younger brother Rory was promoted to the academy.
2015/16 proved to be a breakthrough season for the former Ireland U20s captain - he made 23 appearances, starting 10 games and amassed a total of 753 minutes of senior rugby, including a European debut against Leicester Tigers at Thomond Park.
The lack of fit hookers propelled Scannell into the number two jersey just over a year ago when Mike Sherry’s elongated injury nightmare struck again and Duncan Casey went down with a pectoral problem in the same Champions Cup game against Treviso in Limerick.
Scannell has featured in every Munster game between then and 31st December 2016: a remarkable, unbroken run of 35 appearances with the vast majority of them as a starter thanks to his own form.
He has sought to expand his influence over the ball at the breakdown and to utilise his obvious physicality elsewhere, while improving his defence by simplifying his approach.
Niall won 4 caps for Ireland during the 2017 6 Nations, making his debut in the win over Italy. Before becoming the first choice understudy to Ireland captain Rory Best.
In May 2017, Niall was named in the Ireland squad for their summer tour to USA & Japan and toured the following year to Australia for the three test summer tour.
Scannell was included in Ireland 2018 Squad to tour Australia and added 2 caps to his 7 Test caps after a strong season with Munster.
As of the 2018/2019 Champions Cup, Scannell has had 18 Champions Cup appearances scoring 2 tries and 10 points.
In December 2018, Scannell signed a new deal with Munster Rugby, committing to the province until at least June 2021.
Ahead of the 2019 Six Nations, Scannell has 11 test caps.
(LS December 4, 2018)
|2017 - present|
|Presentation Brothers College