The Everton striker won two penalties at White Hart Lane last season as we won a Premiership thriller 3-2 and has started the season on fire in front of goal - scoring in Everton's last two games and for England Under-21s against Georgia last Friday.
Young was also on target for England in that match with his first senior goal and knows more than most about the threat posed by his international team-mate.
"Francis has great movement and an old head on young shoulders," said our versatile defender. "He's always sharp and even in training, some of his moves are top class. We'll have to keep an eye out for him on Tuesday.
"He's especially dangerous if he plays up front with a big man which allows him to make clever runs off that target man."
Duncan Ferguson will fall nicely into that category if he recovers from a calf problem. If not, Mark Hughes could play. "In so many words, Duncan is a very large man up front," added Young, who has played against him. "And especially with little Franny off him, it's almost an ideal partnership.
"I think the players want to play for Walter Smith at Everton and their starting line-up is a good side. They could cause some problems."
On the subject of starting line-ups - Young has yet to make a start at Spurs this season. "I just have to bide my time, hopefully get a chance and then play well enough for the gaffer to make it hard to leave me out," he added.
Luke Young will warn his team-mates not to pay the penalty again when they come up against Francis Jeffers on Tuesday night.