Joris/Robert project as the more aggressive, pace-driven pair, likely looking to dominate early with quick transitions and high volley tempo. Gil/Castaño should be the steadier duo, aiming to extend rallies, slow the rhythm, and punish over-pressing—especially in Nordic indoor conditions that often reward clean volleying and decisive first-strike patterns. Slight edge to Joris/Robert if they control the net and limit unforced errors; otherwise Gil/Castaño can flip it through patience and lobs.