The goal of this review is to firstly address the concept of chimeric antigen receptor T-cell (CAR T-cell) therapy and where it fits in the evolving landscape of the management of patients with refractory/relapsed diffuse large B-cell lymphoma. The recognition of the indications for CAR T-cell therapy for patients with aggressive B-cell lymphoma will be discussed, including a review of the algorithms and selection criteria for CAR T-cell therapy and finally, the role of bridging therapy and the timing of CAR T-cell therapy in augmenting chances of a successful outcome.