THERE'S always a simmering tension when Tyrone and Dublin take to the field.
The teams have served up some of the most memorable GAA matches of recent decades, and their clash in Omagh tomorrow has all the potential to provide more drama.
The rivalry can be dated back to mid-1980s when the Red Hands first began to challenge for All-Ireland honours.
In their semi-final clash in 1984, Tyrone turned tradition on its head by warming up at the Hill 16 end of Croke Park where Dublin fans always congregate. The move caused obvious disquiet.
A decade later controversy flared during the 1995 All-Ireland final when Dublin's Charlie Redmond was sent off, only to fail to leave the pitch.
Tyrone fans also still wince at a decision to disallow a late equaliser after Sean McLoughlin was considered to have picked the ball off the ground.
Fast forward another 10 years and an infamous Owen Mulligan goal is etched in the memory of Dublin fans.
The Tyrone player dummied past three defenders to score arguably the goal of the decade in an All-Ireland quarter-final, as the county went on to claim Sam Maguire for the second time.
Omagh has also witnessed the full force of the rivalry, with a league fixture at Healy Park in 2006 dubbed the 'Battle of Omagh'.
Referee Paddy Russell sent off four players during the tempestuous game, which he later described as "frightening".
He said he even considered abandoning the match and described how it had pushed him close to retirement.
Tomorrow's match may not provide quite as many fiery moments, but when Tyrone and Dublin meet the fireworks are never far away.
