At risk of sounding a tit, cos I know these tend to go to multiple goalscorers, but I thought Keita was the man of the match. Showed immense quality in possession, and pressed intelligently. But also absolutely maintained discipline for the full ninety minutes.
This is something that people wanted to see more of last season, even when he was performing well in games. This will have done lots to cement Klopp's trust in him now, and done wonders for his chances of featuring in a first choice three or partnering Fabinho when we play in a two.
Being hypercritical, he still seems to have that funny trait of requiring about ten or so minutes for the game to take shape before he starts to pull the strings. But it didn't pass him by, as it did early last season a few times.