In this paper I examine how well Merleau-Ponty's philosophy can respond to Deleuze's challenge to phenomenology. The Deleuzian challenge is double, that of immanence and that of difference; in other words, the double challenge is what Deleuze calls the paradox of expression. I bring together, in particular, Deleuze's 1969 The Logic of Sense and Merleau-Ponty's 1945 the Phenomenology of Perception, and am able to discover a lot of similarities mainly centered around the notion of a past that has never been present. However, this comparison is not decisive; what alone can decide is an interpretation of expression in Merleau-Ponty's final, unfinished The Visible and the Invisible.