The Norwegian, who used to play for Sheffield United and Barnsley, predicted Antenucci would have an impact.
Leeds United got their new season underway with a 1-1 draw against relegated Burnley at Turf Moor.
It looked like Leeds were going to snatch victory from a tight game, when Italian Mirco Antenucci scored a sublime goal.
The Italian, whose future at the club looked in doubt under former boss Neil Redfearn, netted a fantastic strike.
He curled a ball delectably beyond Tom Heaton in the Burnley goal to bag his first goal of the season.
It was a goal that was pretty much predicted by a former Barnsley player.
Jan Aage Fjortoft played for Swindon Town, Middlesbrough and Leeds' Yorkshire rivals Sheffield United and Barnsley during his five years in English football - gracing the Premier League during his time with Boro and The Tykes.
A Norwegian international, he ended his playing days outside of his homeland in Germany, which led him to a career in German television.
In recent times he has become famous for predicting the Bastian Schweinsteiger and Mesut Ozil moves to the Premier League.
Today, he predicted Antenucci’s impact:
I watched Leeds' Mirco Antenucci doing his finishing Thursday. Looked very sharp. Expect him to "go for it" when he gets on @LUFC— Jan Aage Fjortoft (@JanAageFjortoft) August 8, 2015
The Italian, who scored 10 goals in 37 appearances last season, would have been worried about his first-team chances after watching Chris Wood and Lee Erwin arrive at the club.
If he can continue to score goals like this, he will be a regular in the Leeds team this season.