The Miami Dolphins went hog-wild in free agency this offseason, but how they fare in 2013 could boil down to one position: left tackle. That's where second-year lineman Jonathan Martin has been planted on a line in flux. His shift from right to left tackle has received plenty of attention in South Beach -- very little of it positive. The Miami Herald's Armando Salguero reports that Martin has been manhandled and "owned" by edge rusher Olivier Vernon and Co. in practices. Martin gave up a pair of sacks to Vernon one day after allowing rookie Dion Jordan to get by him for two takedowns. "It has been eye-popping to see the extent of the domination because we're not talking about a sack some days but not others," wrote Salguero. "We're talking sack followed by sack followed by other sacks." "You guys were here," coach Joe Philbin told reporters this week. "O.V. got (Martin) a couple of times -- once outside and once inside on a run-action pbutt. I think (Martin has) done a good job in drop-back. I think his sets have been good. The thing an offensive lineman consistently has to work on is the timing of the punch, kind of like a boxer. It's more like a jab. That consistency in the punch is something we have to have him continue to work on." Source: NFL.com