Goalkeeper Marian Kello knows Hearts' aspirations at the top of the Clydesdale Bank Premier League will be tested to the full in the next fortnight.
An unbeaten SPL run of nine wins in the last 10 games has led many to suggest Hearts could challenge Rangers and Celtic at the top of the standings.
After Rangers at Tynecastle on Saturday, Hearts meet Celtic away, St Johnstone at home and Rangers away in matches which are likely to determine whether they can sustain the pressure on the Old Firm.
Kello said: "Hopefully we are competitive with them and we will see in a few weeks how good we are. We want to carry on our record. We can be competitive with them until the end of the season.
"But we don't want to say it with a big mouth because in one week we could be nine or 12 points behind again. We will see next week or in two weeks how we get on."