According to John McClain (not that one) from the Houston Chronicle, the Houston Texans are "working hard" at signing either Johnathan Joseph or (about to be former) Oakland Raiders cornerback Nnamdi Asomugha
Texans are working hard on Asomugha and Joseph. If they get one, they'll have to redo lots of contracts, which means lots of upfront money.less than a minute ago via web 
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John McClain
McClain_on_NFL
The Lions are known to be favoring Joseph, possibly making him their biggest target. There have been rumblings that the San Francisco 49ers are interested, but unknown the level of interest.
ESPN.com Senior Writer John Clayton tweeted earlier on Wednesday that a decision for Joseph could come as early as Wednesday night.