Lucas will undergo surgery, and his absence the rest of the season will loom large for Liverpool and manager Kenny Dalglish.
Now, without Lucas, Liverpool certainly face an even more uphill battle to secure a top-four finish and Champions League football for next season.
To think, just a few seasons ago, many Reds fans would not have been upset in the slightest at hearing Lucas would miss the rest of the season. Lucas overcame his many critics at Liverpool and has become a great holding midfielder for the Reds and offers great protection sitting just in front of the back four.
The midfield was already Liverpool's shallowest area on the pitch, so King Kenny certainly has his work cut out for him in finding a way to replace the Brazilian in the heart of Liverpool's midfield and ensuring the Reds stay competitive at the top of the Premier League table.