There’s still two weeks until the Premier League season starts and it looks as though Liverpool have wrapped up their transfer business already.They've managed to keep hold of star players Mohamed Salah, Sadio Mane and Roberto Firmino, while they’ve added Alisson, Fabinho, Naby Keita and Xherdan Shaqiri.Jurgen Klopp is assembling a pretty impressive side at Anfield.There’s no reason Liverpool shouldn’t be targeting a Premier League title challenge this season but overcoming Manchester City will be a very tough task.They managed to do just that on Wednesday night, though.In the International Champions Cup in the United States, Liverpool triumphed 2-1 against Pep Guardiola’s side thanks to Salah’s header and a last-minute penalty from Mane.Next up for Liverpool is Manchester United tonight.But it’s not all hard work for Liverpool in the US.They’ve been having a bit of fun in training and, on Friday, participated in a little crossbar challenge from the edge of the penalty area.It was a bit of a free-for-all with players just pinging balls at their own free will.But Liverpool fans noticed the efforts of new signing Shaqiri.The £13 million arrival appeared to hit the crossbar three times in a row - and it was something that impressed Liverpool fans.

SHAQIRI IMPRESSES IN CROSSBAR CHALLENGE

Take a look:

But there was another player that impressed - Lazar Markovic.

The 24-year-old is set to leave the club this summer but showed he’s got impressive technique and hitting the bar on numerous occasions.

Olympiacos and Standard Liege are currently in talks with Liverpool over a possible move for the Serbian, according to Sky Sports, with him not playing for the club since May 2015.