Jacqui Warrior, foundation co-ordinator for Teesside High School, says that the newly-discovered air-raid shelter underneath the school's ground could be of huge heritage importance.
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Turkish defender Alim Ozturk has become Sunderland's first signing of the summer.
Love Island star Sophie Gradon has died at the age of 32, it has been confirmed.
Boro's first home match sees former boss Garry Monk bring his Birmingham City side to the Riverside on Saturday August 11.