RT @BritAthletics: Home Nations watch in men's 400m heats at #GC2018 @Dwaynecowan 4⃣ fastest overall after fine run @rabahyousif_r also through to semis 💪 @CamChalmers400 joins them 🙌 @Sam93Dawkins just misses out after a PB Unfortunate DQ for Matt Hudson-Smith