Walsh, a former Reds and Spurs striker, thinks a victory for either team at White Hart Lane could be the stimulus for a top-four finish.
"It's a massive game for both my old clubs," Walsh said.
"They will be desperate to push themselves into the top four and they know Liverpool are one of their rivals for those places.
"Liverpool haven't had a great time of it but apart from the defeat at Stoke they have picked up over the past month or so.
"A win at Spurs would really give them the belief that they are capable of challenging for the top four."