For all the problems he has faced, Suarez, who has scored 19 goals in all competitions this season, has underlined his standing as one of the world's best since joining from Ajax two years ago.
"He gets it at every stadium, so this is just one more for him. He copes very well with it and if people still criticise him for everything, he keeps on scoring goals," Lucas told the Daily Mail.
"It's not nice to see a player, a friend, get that amount of abuse but that's the way it is. But he's showing his quality on the pitch - and that's the most important thing.
"It doesn't seem to worry him too much. If it did, it would have affected him on the pitch."