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Friends say Wayne Bridge and Frankie will be engaged by Christmas.
The Saturdays' Frankie has been dating Wayne since last December, but mates of the footballer say he's itching to propose.
"If Wayne hasn't proposed to Frankie by the end of the year it will be a miracle," the source spilled.
"He's got his heart set on asking her in the run up to Christmas. He's 100% besotted with Frankie."
Wayne and the 'All Fired Up' singer got together after Frankie split from McFly's Dougie Poynter just months earlier.
But lately Wayne has been supporting his girlfriend at The Saturdays' gigs including V Festival, and a recent Edinburgh show where Wayne spent £20k on a birthday date with Frankie.
"(Wayne) spends all of his time with Frankie," the source told the Daily Star.
"Either chilling at home or following her around the country to her gigs. He's told all of his best mates she's definitely the one...
"Wayne knows it's just a matter of time before he pops the question."
The Saturdays' new single 'All Fired Up' is out on Sunday 4th September and their UK tour kicks off later this year.