On Saturday, one of the star performers at the World CupÂwas France star Kylian Mbappe.The attacker, who will cost Paris Saint-Germain more than £100m to sign permanently this summer following his initial loan move from Monaco, helped his nation reach the quarter-finals of the tournament in Russia.At just 19 years of age, Mbappe looked comfortable on the global stage as he scored twice in a thrilling 4-3 victory over Argentina in their last-16 clash.[ad_pod ]The attacker was always considered a sensational talent following his positive season for PSG in which he scored 21 goals and produced 16 assists in 45 appearances in all competitions.Now, his stock has risen even further, and it will continue to rise if he keeps performing at this level.[brid autoplay=”true” video=”256266″ player=”12034″ title=”Watch Three reasons we love to hate… Spain”]After witnessing Mbappe’s heroics, Liverpool fans made some cheeky suggestions on Twitter, urging the club to sign the PSG star.It is hugely unlikely that the forward will be heading to Anfield any time soon, but some supporters couldn’t help but wonder.