Bergessio is injured, so Morimoto and Doukara are in competition to get his place in attack.
Maran is going to go back to his 4-3-3 after successfully experimenting with a 3-man back line.
The tactical change is probably due to Cagliari's typical line-up in an attempt to match them with 4 at the back.
Cagliari just ended a four-match winning streak in a tough match in Florence, but the Sardinians are now relieved from the pressure they felt at the beginning of the season and are also more confident about their abilities.
Catania have seized four points out of four very hard consecutive matches (including the controversial game against Juventus), and the impressive 4-0 win against Lazio has put them in a strong position in the table, just outside the Europa League qualification places.
Since both teams are sitting more than comfortably in the table, this could well be an open match, free of pressure, with a lot of goal scoring chances. Cagliari may have lost a little momentum, while Catania look stronger in every zone of the pitch.
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