Villa go into Saturday’s Wembley showpiece against Arsenal as obvious underdogs, having ended the season with back-to-back defeats, including a 6-1 hammering at Southampton.
In addition, the club suffered 3-0 and 5-0 losses earlier this season to Arsene Wenger’s men, who are looking to become only the eighth team to retain the trophy and the first to lift it 12 times.
Nevertheless, Tim Sherwood’s side have already beaten three Premier League rivals en route to the final, including Liverpool in the final four, and Laursen believes it would be foolish to dismiss their chances in a one-off game.
In particular, the Dane sees Benteke and Grealish as being Villa’s two danger men on the afternoon after witnessing their recent performances during the club’s successful escape from relegation.
Back in top form under Sherwood’s stewardship, the Belgian striker has grabbed 12 goals in the past 12 games, while teenage attacker Grealish has been earning rave reviews since being handed his full top-flight debut in last month’s 3-3 home draw with Queens Park Rangers.
Speaking on his old team’s chances of causing an upset over the Gunners, Laursen said: “I don’t think they are favourites, to be honest. They’ve had a difficult time against Arsenal this season, losing 3-0 and 5-0, but on the day anything is possible – they can win.
“Benteke is vital, that’s for sure. He was injured for some time this season and they really missed him.
“But now he’s back, has scored a lot of goals and proved that he’s a great player.
“He’s big and strong and he can score with both feet. He’s very good and he needs to be for Aston Villa to win on Saturday.”
Continuing on Grealish, the former centre-back added: “He’s a great player to watch – really technical – and I’m sure that he can be very, very good in the future.
“He’s only 19 but him and Benteke are the main guys who will have to create the chances and score the goals.
“If they are aggressive, fight hard and play as a team then they will have a chance, definitely.”