keep the upper hand(on/with: How can humans keep the upper hand on artificial intelligence? • Developers at DeepMind have collaborated with Oxford University researchers to develop a way for humans to keep the upper hand with super-intelligent computers.4uzhoj)
chokehold(перен. have something in (a) chokehold – полностью владеть; have a chokehold on – контролировать, держать под контролем; put someoned in the chokehold – овладеть, подчинить Баян)
maintain a chokehold on(James scored 25 points, Kyrie Irving added 21 and Cleveland withstood a strong second-half surge by Atlanta to maintain its chokehold on the Hawks with a 104-93 victory Monday night in the opening game of their second-round Eastern Conference series. VLZ_58)