Brazilian is aiming to win last two Serie A games but remains coy on possible transfer targets insisting his squad, when completely fit, is very strong
With rivals AC Milan having already been crowned champions, the Napoli game may not affect Inter's league position- but the Brazilian tactician is still looking for victory.
"We have two games coming up that won't make a huge difference to our league position but we still aim to end the season well so that we can go into the cup final on a high," Leonardo told reporters in his pre-match press-conference.
"Inter's aim is always win every match. We want to keep up the results while improving our game. Tomorrow we'll put out a team to win the match, as always."
Leonardo also had positive words for his opposite number Walter Mazzarri, whose future at the Naples club remains unclear.
"You can tell he's very experienced, just as you can see how accomplished and enthusiastic he is," he added.
"It's rubbed off on the players too - you can see it in the personality of this Napoli team."
The coach was quizzed about possible summer transfer targets; Udinese's Alexis Sanchez and Manchester City's Carlos Tevez have both been previously mentioned by members of the Italian media. However, Leonardo remained coy on specific names.
"You have to look at things in the context of which players leave and which ones come in, but Inter are already very competitive. The squad we have here, when everyone is 100% fit, is great," he explained.
"What do we have to do to be competitive again in Europe? Inter have been, and still are competitive."
Leonardo's side currently sit in second place, four points ahead of the Naples club with the Coppa Italia final against Palermo scheduled for May 29.