The Brazilian was impressive in the defensive midfield position in the vital victory.
Many would have forgiven the Brazilian if he had moved in the summer when he was facing the prospect of limited game time in a competitive midfield.
However, Lucas has often impressed in his 16 appearances this season, playing a vital role in front of the defence and keeping his side in possession. One such performance came in the win over Newcastle on Monday evening.
We looked at his stats from the game to see how well he did.
Possession is the name of the game for the midfielder, and he made 86 total passes in the game, with 77 of them being accurate - a success rate of 89%. 35 of those were forward passes as he sought to get the more attacking talents into the game.
Defending was also a key part of his game, with Lucas making 10 tackles in the game, six of which he won, a success rate of 60%. He also managed to win 14 defensive duels, once again highlighting his strength protecting the back line.
Another stat that demonstrates his defensive nous is his number of interceptions having made two in the game and winning both of them.
An impressive performance from Lucas Leiva then, who may just have a future at Liverpool after all.