Olympic gold medallists Mo Farah and Greg Rutherford are among the stars from the London Games to take part in today's Great North CityGames.
Double Olympic champion Farah will run in a two mile international guest race, as athletes from Great Britain wcompete against the United States at NewcastleGateshead Quayside.
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Some dense fog is likely in the southeast, whilst brighter breaks are possible across eastern Scotland, northern England and north Wales.
When asked if he was joking or not, Mr Biden paused briefly before saying: "I’m not committing not to run. I’m not committed to anything."
"Calls and emails are coming in all the time" from players who say they had been forced to sign non-disclosure agreements, it was claimed.