London 2012 Olympics: badminton wars reach court in All-England Championships In the mixed doubles, two evenly matched pairs are competing for what will probably be only one place at London 2012. Chris Adcock and Imogen Bankier are in pole position, ranked 14th in the world, four places ahead of Nathan Robertson and Jenny Wallwork. Gabby White, 21, then weighed in. White is Adcock's girlfriend, and until 2010 was also his mixed doubles ­partner. Adcock then switched to Bankier, with whom he won the silver medal at the World Championships in London last year. White plays women's doubles with Wallwork, and the pair are firm friends. Wallwork, meanwhile, from Leeds, is the girlfriend of Robertson. "Man, sour people are the best," White tweeted sarcastically. Bankier claimed her tweet had been "lighthearted banter," and denied intending to cause offence. Wallwork wrote: "So the one with the "lighthearted banter" is injured again! I'd go for the ropey serve any day," later adding: "you're usually crippled." Bankier accused Wallwork of "spite." Wallwork told Bankier to "jog on back to Scotland." The pair apologised. Bankier said: "The rivalry keeps us both on our toes." In the first round she and Adcock have been drawn against world No1 pairing Zhang Nan and Zhao Yunlei of China. Robertson and Wallwork face Thailand's Songphon Anugritayawon and Kunchala Voravichitchaikul. Both matches take place on Tuesday evening.