ONE Championship tweaks ONE: Big Bang card

Final card for ONE Championship's ONE: Big Bang

ONE Championship made a few changes for tonight's mixed martial arts event, ONE: Big Bang, as a result of a couple of fighters withdrawing from the card as a result of COVID-19 protocols.

ONE Light Heavyweight Kickboxing World Champion Roman Kryklia's matchup against Murat Aygun is now off after Kryklia has been placed into quarantine due to close contact with an individual testing positive back on November 27. Roman did test negative for COVID-19, however.

ONE Championship did managed to find a replacement, as Anderson Silva steps up to face Aygun in a light heavyweight kickboxing bout.

In addition, the fight between Marat Grigorian and Ivan Kondratev has been elevated as ONE: Big Bang's main event.

Greco-Roman Wrestling World Champion Amir Aliakbari's ONE Championship debut will have to wait, as his matchup was removed from the card. He had tested positive for COVID-19 prior to fight,  but based on serological tests was due to a past infection.

Aliakbari managed to test negative before flying in to Singapore for the fight, and already has been discharged from the hospital. Unfortunately, his participation in ONE: Big Bang has been ruled out as an added precaution.

Two matches have been added to the card as well.

Jihin Radzuan and Bi Nguyen face off in an atomweight matchup, while Andy Souwer and Zhang Chunyu tangle in a featherweight kickboxing clash.

Below is the complete card for ONE: Big Bang and the accompanying final weight and hydration results for the fighters involved.

Kickboxing - Featherweight (65.9 KG – 70.3 KG)

Marat Grigorian (70.10 KG, 1.0066) vs. Ivan Kondratev (70.00 KG, 1.0044)

Mixed Martial Arts - Featherweight (65.9 KG – 70.3 KG)

Koyomi Matsushima (70.30 KG, 1.0156) vs. Garry Tonon (70.30 KG, 1.0061)

Kickboxing - Light Heavyweight (93.1 KG – 102.1 KG)

Anderson Silva (101.60 KG, 1.0132) vs. Murat Aygun (101.40 KG, 1.0176)

Kickboxing - Featherweight (65.9 KG – 70.3 KG)

Andy Souwer (70.30 KG, 1.0241) vs. Zhang Chunyu (70.05 KG, 1.0195)

Mixed Martial Arts - Strawweight (52.3 KG – 56.7 KG)

Bokang Masunyane (56.65 KG, 1.0199) vs. Rene Catalan (55.25 KG, 1.0027)

Mixed Martial Arts - Atomweight (47.7 KG – 52.2 KG)

Jihin Radzuan (52.20 KG, 1.0207) vs. Bi Nguyen (51.60 KG, 1.0210)

Mixed Martial Arts - Atomweight (47.7 KG – 52.2 KG)

Ritu Phogat (51.85 KG, 1.0070) vs. Jomary Torres (51.05 KG, 1.0014)

*Hydration values less than or equal to 1.0250 earn a passing mark, while values greater than or equal to 1.0251 earn a failing mark. Athletes who failed weight and hydration tests on Day 1 or Day 2 are given another chance to clear tests on the morning of the event.