Former riders Johan Bruyneel and Jonathan Vaughters are not the best of friends. Yesterday the former accused the latter for doping on his Twitter account. The American Cannondale-Garmin responded promptly to the Belgian who was suspended for a decade following the doping investigation into his former US Postal team and Lance Armstrong, blocking Bruynell from his account.

The Twitter battle started when Vaughters sent a tweet regarding a fashionable apartment in Capitol Hill. He expressed his desire to rent it.

Bruyneel responded with an aggressive tweet: "Hopefully, this one is cleaner than the one you left full of trash in Girona,” he wrote and then added images of blood doping syringes and capsules.

It didn’t take long for Vaughters to block Bruynell as his follower. Bruynell responded ironically: "Oooh-oooh."Sporza commentator Karl Vannieuwkerke had noticed the tweet and was promptly retweeted by Bruyneel.

Meanwhile, others had already engaged in the Twitter discussion. Former rider Matt Cooke asked Bruyneel for details about what year Vaughters left Girona. "The year he left Crédit Agricole and returned to the US. The landlord and new tenants (professional riders) were shocked..." he replied.

American cycling journalist Neal Rogers also noticed Bruyneel’s tweet. He brought his followers up to date: "In case you wondered if there was still bad blood between these two,” he tweeted.

When Rogers found it unlikely that the pair would be hugging it out before Christmas, Bruyneel replied: “I am hetero, Neal.”

Several years ago Vaughters admitted to have doped as a rider. In 1998-1999 he raced for US Postal where Bruyneel was his manager in the final year. As team manager of Cannondale and Garmin and former president of the teams association AIGCP, Vaughters has actively advocated for clean cycling.