Oleksandr Zinchenko believes Jorginho is a "winner" and will help Arsenal "a lot" between now and the end of the season.
The Gunners signed Jorginho, 31, from Chelsea on deadline day after fellow midfielder Mohamed Elneny suffered a knee injury. He has played more than 500 club games and won plenty of honours during his career, including the UEFA Men's Player of the Year award.
Arsenal are attempting to win a first Premier League title in 19 years this season. Mikel Arteta's side are top of the table, five points ahead of Manchester City in second with a game in hand. Yet they suffered a worrying 1-0 defeat at Everton last time out.
