The Carrickshock man was brought in at wing-forward as a direct replacement for the injured Conor Phelan, who broke a finger in last week's Leinster U21 final against Wexford.
Tennyson's inclusion was the only change from the team that beat Galway in the qualifier two weeks ago. Tennyson played at midfield in the opening championship match against Wexford, which Kilkenny lost.
He would be recognised more as a midfielder than an attacker, and his selection over John Hoyne was something of a surprise. Hoyne came on as a replacement in attack in the last match against Galway. Limerick football manager Liam Kearns will not name his team to play Derry in the All-Ireland qualifiers at Roscommon on Saturday until shortly before the game. No injuries were sustained in their Munster final replay at Killarney, but the manager and selectors want to give the panel time to recover before selecting their team. Limerick and Derry last met in knock-out fare in 1984, when the Northerners triumphed in the Centenary Cup.
Tyrone manager Mickey Harte faces an anxious weekend, with his entire squad involved in club games, just a week before the sudden-death qualifier clash with the losers of the Lenister final replay. Clubs have previously had to play most of their league games without their county players, but that is no longer the case.
The 11 "designated" rounds of games have now been completed, and from now until the end of the season, no club can be asked to play without its county players. A full round of league ties, in all four divisions, is scheduled for this weekend.
Those involving county players will take place tomorrow evening, allowing Harte's squad members an extra two days to recover, with the remainder to be played on Sunday.
The Red Hand boss, mindful of the fact that injuries have in the past frequently been picked up in club games, will be keeping his fingers crossed that all concerned come through unscathed. The Tipperary minor hurlers have made five personnel changes and a number of positional changes from the side which lost to Cork in the Munster final.
Full-back James Heffernan, wing-back and captain Richie McGrath and centre-forward Philip Ivors are all ruled out due to injury while centre-back James McCarthy is also nursing an injury and is named on the substitutes.
David Patterson, Tom King, Joey McLoughney, Stephen Lillis and Colm Larkin all come in to the team.
J. McGarry; J. Ryall, N. Hickey, T. Walsh, R. Mullally, P. Barry, J.J. Delaney, D. Lyng, K. Coogan, M. Comerford, H. Shefflin, P. Tennyson, E. Brennan, D.J. Carey, J. Coogan.
M. Ryan (Templederry); D. Patterson (Boherlahan-Dualla), S. O'Brien (Ballina), I. Delaney (JK Brackens); R. McLoughney (Kilruane McDonaghs), T. King (Thurles Sarsfields), J. McLoughney (Toomevara); J. Woodlock (Drom & Inch), J. Dixon (Moycarkey-Borris); S. Lillis (Thurles Sarsfields), K. Bergin (Killenaule, capt), C. Larkin (Borrisokane); D. Hickey (Boherlahan-Dualla), D. Egan (Kildangan), S. Long (Gortnahoe-Glengoole).