blocks his way into the starting XV.
However, with Ireland's Six Nations title defence over, Joe Schmidt may roll the dice on Jackson - who has been superb for Ulster in the GUINNESS PRO12 and Europe this season.
Through nine GUINNESS PRO12 starts and three replacement appearances, Jackson has totalled 76 points from the tee but he brings so much more than his kicking to Ulster according to Trimble.
Indeed, Ireland wing Trimble says the country could very well have another Sexton on their hands should 24-year-old Jackson be given his chance.
"From a provincial point of view Paddy is probably our most important player," said Trimble.
"When he plays we generally play well. He's a guy who has just matured so much in the last few years. When he came in at the start he was wet behind the ears.
"He was a youngster and he's just become a leader.
"I know the temptation in a press conference like this is that if you're asked about someone then generally it's to talk him up, but I genuinely feel with Paddy he's very, very important to us and we're very lucky to have him.
"He cracks the whip, he's a leader. He makes sure standards are maintained and you don't have to look further than [Sexton] to see someone who Jacky's on his way to becoming, in my opinion anyway."
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Guinness PRO12 Ulster News
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