Georginio Wijnaldum insists Liverpool have not yet proved they are back to their title-winning best.
The reigning champions have overcome their recent dip in form with back-to-back wins at Tottenham and West Ham to climb to third in the table.
Wijnaldum marked his 200th Premier League appearance with the third goal at the London Stadium after Mohamed Salah's double, the second of which was a spectacular counter-attack.
The Reds are now four points behind leaders Manchester City, who travel to Anfield on Sunday.