The Arizona Diamondbacks are closing in on completing a one-year deal with free-agent reliever Tyler Clippard, reports Nick Piecoro of The Arizona Republic. Clippard is the second reliever with closing experience the Diamondbacks have signed in February after bringing in Joakim Soria earlier this month. Clippard has not been as effective on the mound in the years after he left Washington, but over the past two seasons with Cleveland and Minnesota, he has shown signs of improvement with a 2.86 ...