Tripps has no technical ability whatsoever. It's why when receiving the ball he always passes it straight back where it came from, he never lets it run across his body for instance and then attempt to play the ball past the oppo. It's so poor that an oppo player can read him like a book and know exactly what he's going to do with it. This gets compounded as he, in fact, ends up hiding having been closed down and then hurried into mistake after mistake and then takes up poor positions to receive the ball (which means Toby or whoever has one less option to pass out to), all our defender's playout from the back, with one exception HIM, he on his own makes us so vulnerable to turnover it's comical.
The one thing he has in his locker from a technical standpoint is his ability to hit a first-time cross, I quite like this despite the fact it rarely comes to anything as it's still an incredibly low percentage opportunity he is trying to fashion. I like it because it's played the first time and hit early the oppo are not quite set but nothing changes from the fact its low percentage as hell.
When I talk about the technical ability of a player, I'm referring to how good a player is with the ball at his feet. He's terrible with the ball at his feet, our worst player.
I agree with you that Sissoko has poor technical ability, I'd also venture towards Rose as well but both of these players dominate their oppo 1v1 (Rose more so while Sissoko is learning or becoming comfortable/confident with this). Tripps doesn't/can't - He's shite.