Antonio and Barrow were both in brilliant form on Saturday, as Forest played out a 3-3 draw with Blackburn Rovers away from home at Ewood Park in the Championship.
“Mic obviously scored two and set up one, and Mo obviously set up one as well,” Mancienne told BBC Radio Nottingham.
“They were big threats all game. Every time they got the ball, it looks like something was going to happen.”
Antonio is one of the best players in the current Forest squad and has been in good form for most of the season.
The 25-year-old midfielder has scored 14 goals and creatde 62 chances in 44 Championship appearances for the Reds this campaign, while having a pass accuracy of 60% and a shot accuracy of 44%.
Against Blackburn at Ewood Park, Antonio scored twice from six shots, had a pass accuracy of 74%, created five chances, put in two crosses and attempted six dribbles.
Swansea City-owned forward Barrow has been injured recently, but having returned to full fitness, he started the encounter and emerged with impressive stats.
The 22-year-old took four shots, had a pass accuracy of 65%, created two chances, put in three crosses, attempted two dribbles and made three blocks.
Forest are currently 11th in the Championship table with 59 points from 44 matches and can still finish in the top 10.