Nicolas Jackson is at risk of missing Senegal’s World Cup opener after he was sent off in their final warm-up match.The Chelsea forward was shown two yellow cards in the space of three minutes against Saudi Arabia on Tuesday.Jackson was sent off for Senegal after two yellow cards in three minutesSTCSenegal concluded their tournament preparations with a goalless draw in San Antonio, Texas.However, manager Pape Thiaw could now be left with a selection headache ahead of the start of the group stage.Jackson was sent off for a second bookable offence during the final 10 minutes of the match.Having replaced Cherif Ndiaye in the 62nd minute, the 24-year-old failed to make it to full-time.Instead, he was first cautioned for a high foot on Saudi Arabia’s Sultan Mandash in the 82nd minute.Jackson was then given his marching orders just two minutes later.After giving the ball away with a misplaced pass, he chased down Abdullah Al Hamddan in a bid to regain possession.However, he could only foul his opponent, with Al Hamddan left reeling in pain on the turf.The referee quickly brandished a second yellow card, but appeared to forget that Jackson had already been cautioned.Following a slight pause, though, he showed Jackson his first international red card.View Tweet: https://t.co/R32SYASFqLThe Chelsea forward was dismissed after a rash challenge in his own halfSTCCould Jackson be suspended?It comes just a week before Senegal’s opening match of the World Cup against France on June 16.The Lions of Teranga will also face Norway and Iraq in group I as they make their fourth finals appearance.Jackson could now be banned for at least one of those fixture, though, with FIFA usually issuing a two-match ban for a red card.Curacao’s Jurgen Locadia recently had his suspension reduced to one match after his sending off against Scotland, though.The decision will allow the forward to feature in his nation’s first-ever World Cup match against Germany.Meanwhile, Cristiano Ronaldo similarly had his ban reduced after he was sent off against the Republic of Ireland in qualifying last year.Jackson could now miss Senegal’s opening match of the World Cup against FranceGettyPoor disciplineJackson has previously been sent off seven times during his club career.Those include two straight red cards for Chelsea as well as another during his loan spell at Bayern Munich.The loanee was dismissed in a Bundesliga match against Leverkusen in March.He is set to return to Stamford Bridge this summer following his season-long stint in Germany.Bayern’s deal had included a conditional obligation to buy if Jackson played 45 minutes in 40 matches.However, he ended the campaign with just 34 appearances across all competitions for the club.World Cup WhatsAppDon't miss an update from talkSPORT in our dedicated World Cup WhatsApp channel.Search for ‘talkSPORT World Cup’ in your ‘Updates’ tab on WhatsApp and we’ll drop the proper, unfiltered football chat straight to your lock screen—no fluff, just pure talkSPORT energy.It’s where you’ll find out all the new rules to watch out for, England and Scotland reaction and big match player ratings. Plus there will be loads of debates on the biggest talking points as Haaland, Mbappe, Kane and the biggest names in football descend on America, Canada and Mexico.