UPDATE 2-Soccer-Last-gasp strike frustrates Juve, Milan on song

(adds Genoa derby, quotes)

* Juve thwarted by Lecce's stoppage-time goal

* Milan seven behind leaders Inter after beating Catania

* Fourth-placed Fiorentina win to trail Juve by five

By Mark Meadows

MILAN, May 3 (Reuters) - Juventus failed to win for a fifth successive Serie A game when Jose Castillo scored deep in stoppage time to give relegation-threatened Lecce a 2-2 draw on Sunday.

Pavel Nedved, due to retire at the end of the season, had scored twice to help third-placed Juve come from behind but they trail leaders Inter Milan by 11 points with four to play.

Second-placed AC Milan, who host Juve next Sunday, are seven behind Inter after in-form Filippo Inzaghi and Kaka netted either side of the break in a comfortable 2-0 win at Catania.

Inter, 2-0 winners over Lazio on Saturday, will seal their fourth successive scudetto if they win at Chievo next Sunday and Juve beat Milan.