Oswe suffered a nasty head injury in their match against Ushuru last week and was ruled out for the rest of the season, leaving Ambani without a natural holding midfielder.
Ambani said Oswe's absence was felt in their 1-1 draw with Shabana last weekend, forcing him to convert Osok, who is an attacking midfielder during their training sessions in readiness for today's match and the subsequent ones.
Derrick Onyango equalised for a re-energised Wazito moments after the restart and when everyone watching perhaps thought the match was headed for a draw, David Oswe
tried his luck from 30 yards with a fierce shot which flew past Leopards custodian Ezekiel Owade and into the back of the net with a minute to full time.Posta Rangers FC's Joackins Atudo vies for the ball with Sofapaka FC's Stephen Waruru during their SportPesa Premier League match at Camp Toyoyo grounds on August 29, 2018.
Luis Tumba, Mark Odhiambo, Oliver Kilonzo, Dan Owino, Dominic Oyando, Ricky Obiero; Midfielders: David Oswe
, Samson Ndegwa, Patient Lukige, Eric Odhiambo, Haron Nyakha, Moses Otieno, Salim Akatha, George Owiti, Chris Opondo, Joakim Omollo; Strikers: Francis Ochola, Ibrahim Mao, Joe Waithira, Kenneth Wendo, Kennedy Ayako, Pistone Mutamba.
Steve Njunge started in between the sticks while Oliver Kilonzo, Ricky Onimbo and Emmanuel Tienan partnered in defence.David Oswe
and Samson Ndegwa combined in the midfield with Kennedy Ayako leading the striking force in the absence of club's top scorer Pistone Mutamba, who joined Sofapaka earlier this week before jetting out with Harambee Stars for India where Kenya is participating in the International Hero Cup.
Ouna, fresh from a 1-0 win over Mathare United on Saturday, benched Harun Nyakha for David Oswe in the only change to his line up.
In the 48th minute, Ouna introduced Samson Ndegwa for Oswe as Eric Ambunya and Timothy Otieno replaced Mwangi and Mike Khamati on the Tusker side.Tusker defender Marlon Tangauzi (left) vies for the ball with Wazito's Joe Waithira during their Kenyan Premier League (KPL) match at Camp Toyoyo grounds on April 25, 2018.