Technical security?
I don't know, I didn't see the game, but this is from Arseblog:
The defensive stats tell quite a story from this game, when you see them laid out. Takehiro Tomiyasu made 6 clearances, and blocked 3 shots; Gabriel made 9 clearances; I mentioned Kiwior’s blocked shot, but the stand out metric from him was his security on the ball, making 71 passes at left-back with a completion of 93% (only Jorginho made more passes).