He has only made two appearances for the Spanish League giants this season and Talk Sports reported that Tottenham are also in the chase to sign the attacker who almost joined Roma before making a u-turn and join Barca.
The 16-year-old joins the Ligue 1 champions on a professional contract through June 30, 2022. Earlier on Tuesday, Simons announced that he was departing Barcelona, after coming up through the club's La Masia academy.
I am here to help him but also to help the club," he added, with Monaco currently languishing in the Ligue 1 relegation zone. "The club are not in a good position. We are in a negative moment but we can turn it around.
Meanwhile, Messi's future with the Spanish giants is up in the air, after he tried to engineer a transfer this summer. Messi was forced to make a u-turn, with Barca vowing to receive his release clause in full.
Former Arsenal star, Charlie Nicholas, has predicted some of this midweek's UEFA Champions League fixtures. Chelsea will take on Lille at Stamford Bridge following a 3-1 defeat to Everton in the Premier League last weekend.
Liverpool are on course for a 93-point season at their current trajectory, and they can open up a nine-point gap at the summit with a win over the Hammers.
The Dane came through Villarreal's academy but only established himself as the La Liga side's No.1 keeper last season, conceding 64 goals in 37 games and keeping six clean sheets.
United lost 1-0 at Newcastle in their last fixture and welcome table-toppers Liverpool next Sunday. Ferdinand believes the club will give Solskjaer time to turn things around.
Hazard scored twice in a devastating seven-minute spell before the break to turn the game on its head, both goals courtesy of superb link-up play from Giroud, who was making his first start of the season at the expense of Alvaro Morata.
Speaking to RAC1, he said: "I think Coutinho is a great player, I really like him. "He is still a Barcelona player. You have to pay the clause or pay a sum to Barcelona. "I think he can be here at the beginning of next season.
Real Madrid are expected to come up with a huge bid for the 25-year-old forward but Liverpool are reportedly ready to turn down the offer which is expected to be in the region of £200m.
The legendary 32-year-old midfielder was in his second season with Ligue 1 outfit Monaco when the coronavirus pandemic brought French football to a halt.