Dinesh Chandimal said Ravindra Jadeja's suspension has given Sri Lanka a lift and his side have "something up our sleeves" as they attempt to deny India a Test series whitewash.
India spinner Jadeja was banned for the third and final match of the series after racking up six demerit points in the last two years.
The top-ranked Test bowler's latest offence came on day three of the second Test in Colombo, which India won emphatically to wrap up the series with one match to play.
Jadeja was named man of the match in India's latest crushing win and Sri Lanka captain Chandimal is relieved he will miss out in Pallekele, where the hosts will set about trying to salvage some pride on Saturday.
"We are two down but still we are a really good team and are hoping to win this game." said Chandimal.
"If we can do that, definitely we can get more confidence and move forward.
"We all know he [Jadeja] is the number one bowler at the moment. It gives us a bit of confidence - bit unfortunate for you [India] guys. As a team, we have something up our sleeves."
Chandimal bemoaned Sri Lanka's bad luck with injuries in a one-sided series, having lost Asela Gunaratne, Nuwan Pradeep and Rangana Herath.
He added: "India are a really good team, especially in the last two to three years, [but] every time players of my team are getting injured. We cannot get the combination right.
"Especially if you lose players like Rangana, Nuwan Pradeep and Asela. We are struggling because of that, but we don't want to give excuses."
|Ostersunds handed fairytale Arsenal tie, Napoli face Leipzig|
|Emery: PSG ´can compete with Real Madrid´|
|Totti urges Roma focus on Serie A despite encouraging Champions League draw|
|Europa League: Last 32 draw in full|
|Messi faces toughest foe in Champions League|
|Tigers confirm broken jaw for Veainu as Tuilagi nears return|
|AC Milan signed too many players, admits Fassone|
|Real Madrid face PSG, Chelsea drawn with Barcelona|
|FA seeking information over Manchester derby incident|
|India agree to be Afghanistan´s first Test opponents|
|He is one of the best strikers in the Premier League - Wilshere hails Giroud|
|Jamshed banned for failing to co-operate with PCB anti-corruption unit|
|Mata: No time to mourn derby defeat|
|Hitzfeld tells Nagelsmann to honour Hoffenheim contract|
|Amor: Mascherano future to become clear soon|
|Good things come to those who wait - Shubhankar wins Joburg Open in Monday finish|
|Huddersfield confident of Chelsea scalp - Ince|
|Sea Eagles facing sanctions over salary cap breach|
|Paine denies Aussies have crossed line with Ashes sledging|
|Road to Super Bowl hits speed bump as Eagles sweat on Wentz fitness|
|Taylor hits record ton as Windies chase mammoth total|
|Oladipo´s career performance keeps Pacers rolling|
|De Bruyne: Man City have to enjoy derby victory|
|Suspended Smith-Schuster watches on in Steelers helmet|
|Bancroft and Warner ´kissed and made up´ after Adelaide mix up|
|There is no-one like Messi – Alcacer|
|Pederson unwilling to comment on Wentz amid ACL fears|
|Kane: Bring on the best in Champions League|
|Neville: Lukaku needs to believe amid Man United struggles|
|Fitzgerald now third all time in receiving yards|
|Eagles QB Wentz suffers knee injury|
|Messi best player of all time – Rakitic|
|Gattuso: I´m even tense playing football with my son|
|Suarez admits Villarreal red swung it for Barcelona|
|Villarreal win ´crucial´ for Barcelona boss Valverde|
|O´Hair and Stricker claim QBE Shootout crown|
|Sublime O´Sullivan equals major record with sixth UK Championship win|
|Villarreal 0 Barcelona 2: Suarez, Messi restore five-point LaLiga lead|
|AC Milan 2 Bologna 1: Bonaventura brace breaks Gattuso´s duck|
|Leinster end Exeter home streak, La Rochelle shine again|
|Texans QB Savage suffers concussion; brief return sparks controversy|
|Guardiola: Man City are an honest team|
|Snow joke! Bills and Colts play in brutal blizzard|
|Mourinho: Herrera denied clear penalty in derby defeat|
|Mourinho admits title race ´probably´ over|
|Josh Gordon scores first touchdown in four years|
|Simeone defends Atleti´s style after battling win over Betis|
|Manchester City´s 14th win on the spin sets new top-flight record|
|Manchester United 1 Manchester City 2: Otamendi strikes massive blow in Premier League title race|
|Bath concerned by injury to Wales forward Faletau|
|Allardyce praises ´brave´ Pawson after penalty decision|
|Atletico Madrid set club-record unbeaten run in LaLiga|
|Ajax 3 PSV 0: Eredivisie title race gets new lease of life|
|Klopp involved in post-match spat with reporter|
|Rooney backs awarding of ´clear penalty´|
|Mathews heaps praise on Lakmal as Sri Lanka end losing streak|
|Real Betis 0 Atletico Madrid 1: Rojiblancos make history to assuage Champions League pain|
|Klopp rages at referee after late penalty denies Liverpool|
|Shubhankar made to wait by weather|
|Liverpool 1 Everton 1: Late Rooney penalty secures unlikely derby draw|
|Napoli 0 Fiorentina 0: Sarri´s men miss chance to usurp Inter|
|Shakib returns as Bangladesh captain to replace Mushfiqur|
|Martial and Rashford both start Manchester derby as Jesus edges out Aguero|
|Joshua-Parker ´close to being locked in´|
|Neuer in no doubt over World Cup fitness|
|Wenger labels Saints sinners over time-wasting|
|Super-sub Giroud celebrates being Arsenal´s saviour again|
|Moeen aware England players must improve behaviour|
|Duckett handed maximum fine & suspended from England Lions|
|Southampton 1 Arsenal 1: Super-sub Giroud rescues last-gasp point|