PARIS (Reuters): -The Games hit their stride on Monday, July 29, with 19 gold medals on offer, including five in swimming.

The temperature is set to hit 30 degrees Celsius with clear skies but the hangover from the deluge of rain on Friday and Saturday means the fate of Tuesday’s triathlon in the Seine hangs in the balance.

Here’s what you need to know about the Olympics on Monday:

CHINA DIVES AHEAD

China has gone into top spot on the medal table after winning the men’s synchronised 10-metre dive, with Yang Hao and Lian Junjie ahead of British veteran Tom Daley and his partner Noah Williams.

China is hoping to win an unprecedented sweep of all eight golds in the diving pool and is on track so far with two out of two.

In shooting Sheng Lihao also brought the Chinese delegation success, winning his second gold of the games in the men’s 10 metre air rifle.

Japan is second in the medal table with wins over the weekend in judo, skateboarding, and fencing.

FOOD FIGHT?

Paris Olympics organisers said on Monday they have dealt with complaints from athletes about food at the Games.

The quality and quantity of food drew criticism from competitors after catering staff rationed breakfast eggs last week.

Organisers had promised fresh produce mostly made in France, with a focus on local and organic products and more vegetarian options. However, some demanded more meat.

MUDDY WATERS

Paris Olympics organisers cancelled the triathlon swimming training session in the Seine river for a second day on Monday, 24 hours before the men’s race, after heavy rain late last week increased both pollution levels and the speed of the current.

A final call on whether Tuesday’s race will go ahead will be made at 4 a.m., based on samples from the river taken 24 hours before.

France has invested some $1.4 billion in new wastewater infrastructure to cut the amounts of sewage flowing into the river, and city authorities have announced plans for three swimming sites to open to the public by June next year.

FRENCH TELECOM NETWORKS ATTACKED

Vandals targeted France’s telecoms networks overnight, piling pressure on French security services trying to secure the Olympics after authorities said they suspected left-wing groups of attacking rail lines ahead of the opening ceremony in Paris.

Police have yet to arrest anyone for Friday’s attacks on the high-speed rail lines with explosive devices, but Interior Minister Gerald Darmanin said on Monday authorities suspected members of far-left militant groups due to the nature of the sabotage.

JUDO PROBES FAILED WEIGH-IN

Judo’s governing body is to investigate why Algeria’s Messaoud Redouane Dris failed the weigh-in for his under 73 kg bout with Israel’s Tohar Butbul at the Paris Olympics, saying athletes can become “victims of broader political disputes”.

The International Judo Federation said Dris arrived for the weight control session on Sunday 10 minutes before the deadline and was found to be 400 grams over the allowed weight limit to compete on Monday.

NO ‘THREE-PEAT’

Italy’s Nicolo Martinenghi won the men’s 100 metres breaststroke gold on Sunday and ended Adam Peaty’s “three-peat” bid to win the same event at three successive Games.

Peaty, hoping to become only the second male swimmer after retired U.S. great Michael Phelps to perform the triple, had to settle for silver alongside reigning world champion Nic Fink of the United States.