Those not on international duty were put through their paces by Jürgen Klopp and his backroom team at the club’s training complex.
Henderson and Matip were pictured taking part in the drills as they continue to work their way back to full fitness.
The champions take on Blackpool in a pre-season friendly on Saturday in a game you can watch live on LFCTV and LFCTVGO.
Our photographer was on hand at Melwood to capture the session and you see how it unfolded in our gallery below.
Photos by John Powell