Suarez grabbed his first Anfield hat-trick, and his fourth in total for the club, in the 4-1 win over West Brom although there was an argument for Sturridge netting the best effort with a delightful delicate chip to put the result beyond doubt.
"The link between Luis and Daniel is only getting better," Lucas said.
"Last year they didn't have a chance to play many games (Sturridge arrived in January but injuries and suspension had an impact on their partnership) so this season we can see they are scoring goals.
"When you have two strikers in the good form they are we always have to make sure we defend well because we will create chances and score goals."
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