An early strike from the Argentine on his first appearance gave the capital club a hard-fought 1-0 win that moved them up to sixth in the Serie A table
A debut goal from Erik Lamela gave Roma a hard-fought 1-0 win over Palermo at the Stadio Olimpico in Sunday's Serie A action.
The eighth-minute strike from the young Argentine moves Luis Enrique's side up to sixth in the table.
The hosts' went into the game making six changes after the disastrous defeat to Lazio a week ago. Juan, Nicolas Burdisso, Marco Cassetti, Lamela, David Pizarro and Marco Borriello all came in for the Giallorossi.
As for Palermo, they made four changes to the starting XI that lost 3-0 to AC Milan last Saturday. Federico Balzaretti, Afriyie Acquah, Mauricio Pinilla and Eran Zehavi all took their places in the side, hoping to end the Rosanero's horrendous away record this season, having not won, or even scored, away from home so far in the campaign.
With that derby defeat still fresh in Roman minds, it was perhaps unsurprising that it was the home side who started the brightest, and constant early pressure eventually led to a goal from Lamela on eight minutes. A left-footed shot from 12 yards out curled across goal and past Tzorvas, the Palermo custodian.
Roma continued to dominate possession, with Daniele De Rossi in particular bossing the midfield and setting his team forward in almost every attack.
Goalscoring opportunities, though, were at a premium. Pizarro and Borriello both went close, but it was Palermo, who had barely touched the ball in the previous 30 minutes, who had the best chance of the half. Eran Zehavi burst through the Roma defence right on the stroke of half-time, only to have his shot saved by Maarten Stekelenburg.
With Palermo hoping to end their away hoodoo, the second half started in a much more open fashion. Zehavi went close on two occasions, first from a shot that flew over the bar on 55 minutes, and then another effort from outside the area that was blocked by Juan.
It was Josip Ilicic, though, who had the Rosanero's best chance. A bursting, counter-attacking run from Abel Hernandez took Palermo 18 yards from goal. A wonderfully delicate ball found Ilicic, who calmly went round the on-rushing Stekelenburg.
His left-footed finish was ambling towards goal, only for De Rossi to rush back, and slide the ball out for a corner. And with that, Palermo's chance of a first away point of the season vanished.
The slender win for Roma moves them up to sixth in the table with 11 points, whilst Devis Mangia's side slide back down to ninth on the back of this defeat.