Mixed martial arts veterans Phil Baroni and Frank Shamrock have had a long standing rivalry within the sport. Now the two fighters have decided to go at it over social media. Baroni faced the former UFC champion back in 2007 for a Strikeforce- Elite XC co-promotion event. Shamrock earned a submission finish over his opponent within the second round, but the rivalry between the two fighters hardly ended there. Now Shamrock and Baroni have gone on to accuse each other of using steroids during their highly anticipated fight. Check it out below. While Frank Shamrock is still firmly in retirement, Baroni recently made the decision to return to the cage after spending some time on the independent professional wrestling circuit. Baroni faced off against Matt Lagler at King of the Cage earlier this month, earning a swift first round TKO victory over his opponent. https://twitter.com/philbaroni/status/1000455355606876160 https://twitter.com/frankshamrock/status/1000456005438730240 https://twitter.com/philbaroni/status/1000498725607763968 https://twitter.com/frankshamrock/status/1000499145663070209 https://twitter.com/philbaroni/status/1000507849963749378 https://twitter.com/frankshamrock/status/1000508496570273792 https://twitter.com/philbaroni/status/1000515885377896448 https://twitter.com/philbaroni/status/1000531935473483779 https://twitter.com/philbaroni/status/1000501088527704064 https://twitter.com/frankshamrock/status/1000508928273207296 https://twitter.com/philbaroni/status/1000509391097839616 https://twitter.com/frankshamrock/status/1000509834062528512 For more MMA news click here.