What was the 'catalyst' in Cherries' downfall?

What happened

Former Bournemouth defender Joe Partington told BBC Radio Solent's Jordan Clark on the latest episode of Cherries: Unpicked that defensive set-pieces were the "catalyst" in Bournemouth's capitulation at Manchester City. Marc Guehi's 84th-minute equaliser - a free header in the area - sparked a City comeback as Enzo Maresca's side turned the opening game of Bournemouth's season on its head.

Summary assembled by rule from the sources below

Sources