The 19-year-old will link up with Bobby Grant’s side until January 3.
He made 21 appearances for fellow Northern Premier League side Warrington Town last season, scoring nine times in 21 appearances as the Yellows reached the play-off final.
His performances during the 2021/22 campaign earned him a move to Bolton, where he linked up with the club’s B team.
Grivosti also spent time on loan at Yeovil Town earlier this season.
He could make his Boro debut against South Shields on Wednesday evening.
Photo credit: Bolton Wanderers
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