Manchester City's Boxing Day clash with Newcastle has been thrown in the air after Kyle Walker and Gabriel Jesus tested positive for coronavirus.The duo, along with two members of City's coaching team, returned positive results with both players having featured in City’s 4-1 League Cup win over Arsenal on Tuesday.Guardiola will be left with a decision to make on his team to face Newcastle with Sergio Aguero still on his way back to full fitness.Jesus has been regularly starting as City's striker in the Argentine's absence though Aguero has begun to return to the pitch.A club statement said: “Manchester City FC can confirm that Gabriel Jesus, Kyle Walker, and two members of staff have tested positive for COVID-19.“All four personnel will now.