By Ricky Dimon The clay-court swing will begin with a bang, and not at a place anyone would expect. Both Dominic Thiem and Stan Wawrinka will make long-awaited returns at none other than the Andalucia Open--a Challenger event in Marbella, Spain that begins next Monday.Thiem has been sidelined since sustaining a wrist injury on the grass courts of Mallorca last June. That … [Read more...] about Thiem announces return, joins Wawrinka on the comeback trail at next week’s Marbella Challenger