UPDATED 03:15 6th September 2016
Defender. A summer transfer deadline day signing from Huddersfield Town, left-back Senior won the Professional Development League 2 Championship in the 2015/16 season with his former side.
The 19-year-old left the Terriers after a nine-year association with the club, signing for the Hatters on a two-year-deal.
He made his first career professional appearance for the Hatters against West Bromwich Albion in the Checkatrade Trophy in October 2016.
Senior’s EFL debut came on 14th January, the day after his 20th birthday, when he appeared as a second-half substitute in the 2-1 win at Crewe.