Andy Murray loses in first round of Australian Open

MELBOURNE, Australia — If this was it for Andy Murray, if this truly was it, he gave himself — and an appreciative, raucous crowd that included his mother and brother — quite a gutsy goodbye, the type of never-give-in performance he’s famous for.

What Murray could not quite do Monday at the Australian Open was finish off a stirring comeback and prolong what might just be the final tournament of his career.

Playing on a surgically repaired right hip so painful that pulling on socks is a chore, he summoned the strength and strokes to erase a big deficit and force a fifth set before eventually succumbing to 22nd-seeded Roberto Bautista Agut 6-4, 6-4, 6-7 (5), 6-7 (4), 6-2, Murray’s first…