Suarez struck in victory at Sunderland on Sunday.
"Luis was the best player in the Premier League last year, so having him in our side again this season is just a real boost for all the team and the squad," Lucas told Liverpoolfc.com.
"He's really happy to be back. He's always been training with us, but now he's available to help us in the official games, it will be much better.
"We just hope he can have the same season that he had last year because he was a really important player for us.
"If he does the same as last season, we will have a better chance to achieve what we want to achieve."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball