Certainly can't accuse this one of being a low-key friendly. Plenty of effort, plenty of running, plenty of fouls (plenty of yellows, even!). Plenty of possession from Liverpool, too, but so far the Chelsea defense have held them off the scoresheet.
One thing that's lacking is Chelsea creating too many chances, though it's not for a lack of trying. Plenty of opportunities to be had in transition or when Chelsea win the ball back (which they've been doing fairly well), but errant passes are letting the team down. Some of the passes in possession have been rather bad, too. Shocking, even, though Liverpool have not taken advantage.
The interesting tactical wrinkle of the first half has been Bertrand Traoré's role, who's been dropping deep out of possession, forming basically a three-man midfield alongside Matić and Fàbregas. Meanwhile, with Costa not playing, Loftus-Cheek has been deployed in the furthest-forward striker role, which I guess suits his size but not quite his skill-set.
Still, Chelsea's effort, pressing, and closing down has been commendable. Plenty of room for improvement, but there are promising signs.