5. Lazar Markovic
Lazar Markovic has had a dismal spell at Liverpool. When Liverpool signed him from Benfica in 2014, a lot was expected from him. Their confidence in him can be seen in the £20 million that was spent on bringing him to Anfield.
To be honest, he just didn't click in the Premier League. After failing to impress at Liverpool, he's been subject to Liverpool's extensive loaning system ever since.
Klopp's decision to include him in the squad that's touring the USA means one of two things. One; it's Klopp's way of saying that "this is your last chance, grab it." Another reason why Klopp may have included him in the squad is to attract bids from potential suitors.
According to reports, Liverpool is willing to sustain a loss on Markovic and are willing to sell him for less than the £20 million that they paid to get him to Anfield.