As the Giants canvas the market for center field upgrade options, the team has “shown interest” in Billy Hamilton of the Reds, per’s Jon Morosi (via Twitter). The 27-year-old projects to earn an even $5MM in his second-to-last season of arbitration eligibility. It’s no secret that the Giants are looking to add a center fielder. And it’s clear that defensive capability is a significant consideration, given that Denard Span is being moved to the corner in large part due to his inability to cover sufficient swaths of the spacious grassland of AT&T Park. Hamilton would no doubt help in that regard, as he’s one of the game’s premier defenders — and has been ever since becoming regular in 2014.