For Bromell, winner of the United States Olympic trials in Eugene in Oregon last month, the gauge will be particularly urgent given his tepid performance at last Friday’s Diamond League meeting in Monaco, where he finished fifth in 10.01sec in a 100m won by compatriot Ronnie Baker in 9.91.

Bromell heads this year’s world list with the personal best he clocked in his native Florida on June 5, 9.77 - which also happens to be the Gateshead stadium record, set by Jamaican Asafa Powell in what was then a world record-equalling performance in 2005.

The 26-year-old has renewed his career after tearing his Achilles tendon in his efforts for the US 4x100m relay team at the Rio 2016 Olympics - efforts that came to naught when their bronze medal was annulled because of a faulty first exchange.

Speaking about his return to top-level sprinting at the pre-event press conference today, Bromell commented: "Friends, family, team, coach, agent... everyone around me contributed to me being back here.

"It wasn't just me.

"I didn't wake up and just have the ability to run fast again.

"I thank the people that are around me."

Bromell will face a field including Fred Kerley, who qualified for Tokyo by finishing third in 9.86 at the US trials, and Canada’s Andre De Grasse, the Olympic and world 100m bronze medallist.

Britain's world heptathlon champion Katarina Johnson-Thompson is also back at Olympian heights after rupturing an Achilles tendon - in her case in December last year.

Johnson-Thompson will be one of around 40 members of the British Olympic team, more than half the squad, to be competing in the north-east of England at a venue which has already held one Diamond League meeting this season after Moroccan capital Rabat had to cancel because of COVID-19 concerns.

This second meeting was originally due to have taken place at the London 2012 Olympic Stadium until it became unavailable.

Still making her way back to full fitness, Johnson-Thompson is entered in the women’s long jump, where she will take on world champion Malaika Mihambo of Germany.

At the Diamond League meeting in Stockholm on July 4m Mihambo produced the best jump of 7.02 metres in the third round but settled for second place in the controversial new final-three format when her final effort of 6.77m was bettered by the 6.88m of Ivana Španović of Serbia.

Another British world champion, Dina Asher-Smith, was due to compete over 200 metres against Rio 2016 100m and 200m champion Elaine Thompson-Herah but pulled out citing a tight hamstring, tweeting: "I’m sorry to those who were hoping to see me run this week but I’m looking forward to making you all proud in a few weeks' time."

Meanwhile the Jamaican double Olympic champion has shown resurgent form, clocking 10.71sec, the second-fastest time run this year, in beating her 34-year-old compatriot Shelly-Ann Fraser-Pryce in Hungary on July 6.

World 1500m and 10,000m champion Sifan Hassan of The Netherlands, who was due to run in the women’s mile, was another to withdraw citing a tight hamstring.

Winnie Nanyondo of Uganda, who has a season’s best of 4min 00.84sec in the 1500m, and American Kate Grace, who clocked 1:57.36 for the 800m in Stockholm, her third successive personal best, now start as favourites.

The men’s mile has Commonwealth and European bronze medallist Jake Wightman in the field along with fellow Briton and European indoor 800m record-breaker Elliot Giles, who will be running the 800m in Tokyo.

Germany’s 2017 world javelin champion Johannes Vetter, whose effort of 97.76 metres in Poland last September put him second on the all-time list behind the 98.48m world record set in 1996 by the Czech Republic’s Jan Železný, will be in a stellar field that also includes world champion Anderson Peters of Grenada and the London 2012 Olympic gold medallist Keshorn Walcott of Trinidad and Tobago.

In the women’s 400 metres hurdles, Femke Bol, the 21-year-old Dutch athlete who won the European indoor 400m title earlier this year, will resume her recent rivalry with US athlete Shamier Little.

Bol, unbeaten in five hurdles races this season, beat Little in Stockholm with a time of 52.37sec, the fourth-fastest in history.

Little, who finished fourth at the US trials and failed to qualify for Tokyo, ran 52.39 for the fifth-fastest time in history.

Bol beat Little again in Hungary on July 6, and their third meeting promises another highly competitive spectacle.

The men’s 800m field is headed by Clayton Murphy, who won the US Olympic trials in 1:43.17. 

He will face the men who finished third and fourth behind him - Bryce Hoppel and Isaiah Harris - as well as world silver medalist Amel Tuka, who will be seeking Bosnia and Herzegovina's first-ever Olympic medal in Tokyo.

The women’s pole vault features Katie Nageotte, who leads this year’s world list with her personal best of 4.95 metres she achieved in winning at the US Olympic trials last month, along with compatriot Sandi Morris, the world indoor champion, and Holly Bradshaw, who raised her national record to 4.90m at last month’s British trials.