Berahino, who threatened to go on strike after being refused a move to Tottenham during the last transfer window, has scored six times in 20 appearances this season, mostly as a substitute.
"Saido is a goal-scorer when you put him in front of goal. But he's not fully fit, he lacks sharpness and is not as good as he was last year," Pulis told the club's website (www.wba.co.uk)
"We know he can do it and you can't take away the fact that he has a wonderful talent," he added of a player who netted 20 goals last season.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
"People are going to have to be a little bit careful with the expectations. He will score but we have to get him up to a level of match fitness. That is very important for us."
($1 = 0.7012 pounds)
(Reporting by Simon Jennings in Bengaluru)
