Luis Diaz scored Liverpool's first Champions League hat-trick at Anfield in seven years as they extended their 100 per-cent record to four matches with a 4-0 victory over Bayer Leverkusen as former midfielder Xabi Alonso endured a miserable return.

Luis Diaz scored Liverpool's first Champions League hat-trick at Anfield in seven years as they extended their 100 per-cent record to four matches with a 4-0 victory over Bayer Leverkusen as former midfielder Xabi Alonso endured a miserable return.