"There's still some points to be made out there on the mat," GB performance director Gary Hall told BBC Sport.
Martin Stamper won -68kg bronze at the 2011 Taekwondo World Championships
"The athletes see it as a test. They have performances on their mind and they want to show the selectors that they are able to perform in front of a home crowd and deliver the goods when it matters."
Only a disastrous performance or injury for Cook, who has won seven international titles since
quitting the GB set-up
last year, is likely to prevent him from securing the -80kg Olympic place for a second Games in a row.
"I'm training really hard, five-six hours per day, so there's a lot of blood, sweat and tears, but hopefully it'll all pay off and I can retain my title in front of a home crowd," Cook told BBC Sport.
Stevenson is said to be recovering from a
"ahead of schedule" and could be ready for combat work next month. It means that, realistically, Walkden needs to secure a medal if she is to stand any chance of convincing the GB Olympic selectors.
"I have nothing to lose now," admitted Walkden, who endured her own
"I have to focus on fight by fight, round by round, and give everything I've got to that 1% chance, because I'm not letting this go."
The British team finished fifth at the previous European Championships in Russia, with
and two bronze medals, and with home advantage they are targeting more in Manchester.
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