The Croatian is raring to go despite having only returned to Melwood for training on Tuesday.
"Yeah, why not? I'm a football player so I want to play football - that's what I'm doing all my life so why not?" Lovren told the club's website.
"Like always it [day one of pre-season] was a little bit hard, but I'm glad that I'm here back. The vacation is over, it's time to work and to get back on track where we stopped.
"We need to prepare ourselves for the beginning of the season because the schedule is quite tight when you look at it.
"We will play already for two big, major trophies [in August] so it's a great opportunity for us and all the fans around the world."