The 20-year-old striker took his tally to three goals in two friendly matches by coming off the bench to score a stylish double that earned Liverpool a 2-2 draw with Salzburg on Tuesday.
Brewster has picked up where he left off following a fruitful loan spell with Swansea City last season - during which he netted 11 times in 22 appearances for the Championship club - and Wijnaldum has explained why expects such performances from his teammate.
“I’m not ‘impressed’, because I know already which kind of quality he has,” the midfielder told Liverpoolfc.com, when asked to sum up Brewster’s pre-season so far.