Keogh, who was caught publically urinating outside a nightclub, was handed a disorderly conduct charge by Adelaide police while Risdon was charged with loitering after refusing to leave the scene, despite being ordered by police to do so.
Sage said that Risdon's penalty would be suspended, with the pair due to face Magistrate's court in Adelaide on 19 March.
“We were limited in what we could do as a club by the Collective Bargaining Agreement between the PFA and the FFA,” Sage said.
"But within that agreement it says that we can charge them a maximum of 50 per cent of their weekly wage and that’s what we have decided to do.
“Both players will face that penalty because in Andy’s case you shouldn’t do what he did and it's the same for Risdon because when the police tell you to walk away, you walk away, whether it’s your mate or not.
“With Josh, though, we will suspend his sentence and if he trangresses again he will be fined for that, plus this offence will be backdated.
“Andy understands the penalty and did not try and argue it with us – he knows he did the wrong thing. Josh should have been a bit smarter – he got ordered to move on which he ignored.”
The incident has added an unwanted layer of controversy at a time when the club's books are being audited by FFA officials after breaches in reporting protocols over allowances, perks and payments to players and their agents, which will see the FFA deliver a definitive verdict on its investigation by the end of the month.
With the offences not seen by the club as worthy of a suspension, a Glory statement confirming the sanctions against Keogh and Risdon read:
“The club has issued the two players with a Breach Notice in respect to Clause 6 of the National Code of Conduct. Specifically, the club has determined that the players have breached:
“Clause 6.1(a): “… a Professional Player must … at all times behave in a manner that promotes and upholds the highest standards of integrity, dignity and professionalism.”
“Clause 6.2(d): “behaviour that brings the Club into Disrepute, including inappropriate behaviour in public”.
“Based on the submissions from the two players and the findings of the club’s thorough investigation, in accordance with Part V of the FFA Statutes, the club has reprimanded both players and issued the following sanctions:
“The club has imposed the maximum financial disciplinary sanction on Andy Keogh permissible under Part V of the FFA Statutes.
“The club has imposed the maximum financial disciplinary sanction (suspended) on Josh Risdon permissible under Part V of the FFA Statutes. The suspended sanction shall become payable in the event the player is subsequently found to have breached the National Code of Conduct prior to the conclusion of the 2014/15 A-League season.
“The club has elected not to impose any match suspension for either player."
Despite Sage describing the infractions of the pair as “light” after they hit the town in the wake of the 1-1 draw with Adelaide United on Sunday, he added: “That may be the case but we don't take anything at this club lightly at all.
“We don’t condone anything thing they have done, we have sponsors we are responsible to and their behaviour was not acceptable.”
But Sage sought to put some context on the matter.
“In other codes like AFL you have seen girls getting bashed and raped and fights in nightclubs and my guys get a disorder charge and loitering charge and its front page news in Perth," he said.
“I think that’s absurd. It must have been a slow news day. I’ve had TV cameras camped outside my office all day.”
The club has employed an Adelaide based solicitor at players' cost to determine whether they will be compelled to attend court on the matter or whether it can be handed in their absence.
“The club does not condone any kind of behaviour which breaches its protocol and the National Code of Conduct," Glory CEO Jason Brewer said.
"Our investigation has identified the players failed to adhere to the highest professional standards that this club's corporate partners and fans expect.
“Both players have acknowledged their behaviour did not meet the Club’s high standards, and both have accepted the sanctions imposed on them."
A contrite Keogh said via a statement: “I would like to sincerely apologise to our fans and sponsors, to our playing group and club executive for my poor judgement and behaviour.
"I realise my actions have embarrassed the club and I deeply regret the events that transpired in Adelaide.
“From here on I would like to focus on my football and help Perth Glory extend its lead at the top of the table and make history by winning the league and hopefully the championship."
Perth Glory sits on top of the A-League table and will face Melbourne City this weekend in its Round 18 match at AAMI Park.
