Mr Tan Lam Siong, who had earlier declared he would stand in Potong Pasir SMC as an independent candidate, has pulled out of the contest on Nomination Day.
Mr Tan cited an encounter with Singapore People's Party candidate Lina Chiam, who lost to the People's Action Party's Mr Sitoh Yih Pin by 114 votes in the 2011 General Election. Mrs Chiam has stated that 2015 will be her last GE.
According to Mr Tan, he drove by a "lady driver struggling to turn her steering wheel" on so as to let his car pass on Monday night. As he drove by, he saw the driver was Mrs Chiam, who was in her party T-shirt and "looked rather haggard", according to his blogpost on Tuesday (Sep 1).
"I recall her recent statement about this election being her last election and that she will be retiring with Mr Chiam (See Tong, her husband)," said Mr Tan.
"I have decided not to contest. Instead, I will lead my team to show our support for Mrs Chiam at her rally and hope she succeeds to regain Potong Pasir SMC and continue Mr Chiam's dedicated service to its residents."
Mrs Chiam has stated her intent to contest the incumbent Mr Sitoh at Potong Pasir again.
She told Channel NewsAsia: "We've heard the news about his withdrawal. We are focused on serving the residents of Potong Pasir. I have not met Tan Lam Siong."