Dash through a minion to have Sweeping Blade available to chase your opponent should they flee; Dash directly to your opponent to preserve a minion as your escape route.
At level 18, Yasuo's Steel Tempest reaches its Attack Speed cap with 55% Attack Speed from items.
Last Breath can be cast on any target that is knocked Airborne, even by one of your allies.
Steel Tempest is very narrow. Dodge laterally if possible.
When Yasuo lands two Steel Tempests in a row, his next will fire a tornado. Watch and listen for the associated sound to prepare to dodge.
Yasuo is at his weakest just after he has launched a whirlwind. Engage at that point.
Yasuo's shield from Resolve lasts only 2 seconds. Dealing damage to him will trigger it. Wait it out, then engage.