By bending a beautiful finish past Bernd Leno to kick off the win against Fulham, Ngumoha became Liverpool's youngest scorer at Anfield in the competition.
Robertson, meanwhile, netted the second goal of a 3-1 victory over Crystal Palace last weekend with a clinical strike from a speedy breakaway.
Those goals are among eight contenders for April's prize and you can cast a vote to help determine the winner here.
