* Dollar index slips from seven-week highs
* Euro firmer even after dovish ECB comments
* Canadian dollar among worst performers this week
* China trade data in focus
By Ian Chua
SYDNEY, Jan 10 (Reuters) - The U.S. dollar eased from a seven-week high early on Friday as investors booked some profits ahead of the keenly awaited U.S. jobs report, helping lift the euro that was briefly unsettled by dovish comments from the European Central Bank.
The dollar index last stood at 80.953
Traders said the greenback could easily rebound if non-farm payrolls surprised on the strong side and fuelled expectations for the Federal Reserve to scale back its bond-buying stimulus more quickly.
"Ongoing improvement in the labor market may prompt the Federal Open Market Committee to take a more aggressive approach in normalizing monetary policy," said David Song, analyst at DailyFX.
But Song said any signs of a further slowdown in wage growth could actually encourage the Fed to further delay its exit strategy amid the threat of disinflation.
Against the yen, the greenback slipped to 104.83
The common currency had initially fallen after the ECB forcefully underlined its determination to take action should deflation become a real risk or if rising money market rates threaten the bloc's fragile recovery.
But the euro ran into strong buying interest from a number of sources and failure to break below chart support around $1.3525 forced those who had sold earlier to quickly cover their positions, traders said.
The common currency also climbed against the yen, reaching 143.03
For the week, the Canadian dollar is in contention to be the worst performer among major currencies, having already shed nearly 2 percent to its lowest in more than four years.
A string of disappointing domestic data has soured sentiment for the loonie, which fell as low as C$1.0875 per dollar
The Australian dollar didn't fare as badly although it has drifted lower through the week. The Aussie traded at $0.8892
For Asia, the focus will be on Chinese trade numbers for a sense of how global demand is faring. Median forecasts are for exports to rise 4.9 percent in December, from a year ago, while imports are seen up 5.3 percent.
This series does tend to surprise, however, and any weakness will likely pressure commodity currencies such as the Aussie.
(Additional reporting by John Noonan; Editing by Edwina Gibbs)
((ian.chua@thomsonreuters.com)(+61 2 9373 1871)(RM: ian.chua.thomsonreuters.com@reuters.net))
Keywords: MARKETS FOREX/