The US dollar strengthened against the yen on speculation delayed September jobs data due on Tuesday (US time) will be strong enough to allow the Federal Reserve to contemplate tapering by year-end.
Economists forecast that 180,000 jobs were created in September, according to a Reuters survey, from 169,000 a month earlier, while the unemployment rate remained at 7.3 per cent.
The greenback strengthened to 98.13 yen from 97.77 yen in late New York trading on Friday. The Dollar Index was little changed at 79.669, having touched an eight-month low of 79.478 on Friday in the US.
"For now all eyes will turn to US nonfarm payrolls data tomorrow with markets anticipating a print near the 180K level," Boris Schlossberg, managing director of FX strategy at BK Asset Management in New York, told Reuters. "If the numbers are close to expectations the greenback could see a relief rebound as the week proceeds."
US Treasuries fell for the first time in four sessions ahead of the jobs report, which has originally scheduled for release on October 4. The yield on the benchmark 10-year bond rose three basis points to 2.61 per cent. The Dow Jones Industrial Average slipped 20.33 points to 15,3798.97 and the Standard & Poor's 500 Index fell 3.38 points to 1741.12.