Liverpool manager Brendan Rodgers has described Rickie Lambert as one of the "most accomplished" footballers that he has seen following the striker's move to the club.
The 32-year-old England international joined the Reds from Southampton on Monday for an undisclosed fee.
Lambert scored 117 goals in 235 appearances for the Saints after arriving at the club from Bristol Rovers in 2009.
"I've seen Rickie Lambert over the years and he's one of those players that probably never got the recognition for what a really good footballer he is," Rodgers told the club's official website.
"It's only late on in his career - at 29, 30, 31 - that people are really starting to focus on his qualities. He was probably seen as the traditional big number nine, a British striker that is good in the air.
"But he's one of the most accomplished footballers I've seen. It has been so refreshing that he's got his call into the England team, and he certainly hasn't let anyone down - he has been outstanding."
It is understood that Liverpool have paid Southampton an initial £4m for Lambert's services.