Patrick Mahomes and Louis Rees-Zammit combine for the first time ever in Chiefs practice

Patrick Mahomes and Louis Rees-Zammit linked up for the first time in Chiefs colors on Thursday, as the latest addition to Kansas City's offense impressed in practice.

Rees-Zammit, who only joined the team in March, was called upon when Mahomes threw him a lateral pass after snapping the football near the end zone.

The 23-year-old, rookie running back then showed off his blistering pace by avoiding flying tackles near the sideline.

'St. Joe debut for Rees-Lightning,' the Chiefs account captioned its clip of the play on X. 

Chiefs fans quickly reacted to the footage with excitement on social media, as many claimed that they can't wait to see Rees-Zammit play in the fall. 

'I've been pounding the table for him since he joined the IPP and then signed with the Chiefs,' a person said on X. 

'So excited for this season ngl,' another user shared. 

'Rooting for you, LRZ!' someone else wrote while a Patriots fan said: 'Rees may be the guy who leads the Chiefs even higher than the Pats dynasty ever was. Would not be surprised to see him in MVP debates come that time.'

A few fans also pointed out that the Welshman still holds the football like a rugby player, meaning with two hands instead of one like wide receivers do.

A verified account posted: 'That's a solid rugby hold right there! He isn't dropping that ball.' 

Another user shared: 'Dude carries the ball like late career tiki barber high and tight two hands.'

Rees-Zammit, who was spotted at Taylor Swift's concert in Cardiff in June, signed a three-year, $2.85million with the Chiefs on March 29th. 

In January, he announced that he would retire from rugby union to train in American Football through the NFL's International Player Pathway (IPP) program. 

He has represented both Wales and Gloucester in the past.