Brennan is the latest Tyrone ace to depart county squad
Tyrone manager Mickey Harte will have to dig deeper into his attacking options after Trillick attacker Lee Brennan left the county senior squad last week.
Brennan is understood to have become frustrated at a lack of game time this season, while a change in emphasis in Harte's attacking plans phasing out the smaller, nippier forwards in favour of size.
With Matthew Donnelly and Cathal McShane, along with occasionally Peter Harte spending more time towards the opposition goals, opportunities for Brennan - an All-Ireland under-21 winner in 2015 - were limited.
After not featuring in the League opener away to Kerry, Brennan played the full game against Mayo and scored two points, one of them an offensive 'mark'.
He was dropped for the next game away to Roscommon.
He played no part in the win over Monaghan and got just 12 minutes at the finish of their commanding win over Cavan at home.
Since then, he wasn't called upon for a minute in their game against Dublin nor for their final League game against Galway.
With Kyle Coney, Darren McCurry - who himself took a year out of the county panel last summer - and Connor McAliskey all ahead of him as impact subs, Brennan left the panel and scored three points for Trillick in Sunday's 1-9 to 3-6 defeat to Omagh St Enda's.
His talent had long been signposted through a glittering underage career in school's football at St Michael's College in Enniskillen and through the Tyrone underage structures.
"Suffice to say, the man is as natural a footballer as you will see," was the assessment of former Tyrone captain Feargal Logan, who managed Brennan to that 2015 Under-21 All-Ireland.
"He is a clinical finisher and his ability to finish goals is up there with the best I have seen - Peter (Canavan), even Maurice Fitzgerald and these guys, wee Lee can finish to the onion bag, up there with any of them."
Straight after the end of the National League, Ronan O'Neill also left after not getting any action throughout the campaign.