Aitor Karanka is convinced the battle to keep Middlesbrough in the Premier League is not his toughest as a coach.
The 43-year-old Spaniard saw his side slip to the brink of the bottom three last weekend when a 1-0 home defeat by Watford left them above the red line only on goal difference and without a win in six league outings ahead of Saturday's daunting trip to Arsenal.
However, Karanka is confident he is a better coach than he was the day he arrived in November 2013, with the Teessiders then flirting with relegation from the Sky Bet Championship.