An assembly (100) for accessing a body cavity is provided. The access assembly includes a flexible outer sleeve (110) configured to be received through an opening in tissue. The outer sleeve defines a passageway therethrough and a notch formed about an inner surface thereof. The access assembly further includes a support plate (120) configured for selective reception through the passageway of the outer sleeve and within the notch formed in the inner surface. The support plate defines at least a first opening configured to receive a surgical instrument therethrough.