Yasuo vs Renekton

Hit twice with Steel Tempest (Q), on minions if needed, to charge the whirlwind. Cast it during Sweeping Blade (E): the strike becomes a circle.

Keep moving before taking a trade: Way of the Wanderer (passive) builds your shield while you move, and it triggers on the first hit you take.

Chain Sweeping Blade (E) on different targets to reposition or dodge: each target has its own cooldown, so the spell comes back almost instantly.

Save Wind Wall (W) for a projectile that decides the teamfight, like Jinx's ult, rather than for poke: it blocks for 4 seconds, on a 25 to 17 second cooldown.

Watch for your allies' knock-ups: Last Breath (R) can be cast on any airborne champion, whether the knock-up comes from your whirlwind or Malphite's ult.

Take a trade when his Fury is under 50: above that, Ruthless Predator (W) destroys your shields and stuns you twice as long.

Take a trade once he has used both Slice and Dice (E) dashes: it's his only way to reach you or get out, on a 16 to 10 second cooldown.

Once he hits level 6, back off when he casts Dominus (R): he gains max health, builds Fury every second, and damages enemies around him.

If you survive his first minutes, play for time: Renekton looks to get ahead in lane, before everyone has their items.