list_item_group.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="@dimen/margin_medium">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/textViewGroupName"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="GROUP A"
                android:textSize="16sp"
                android:textStyle="bold" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_weight="0.7"
                    android:gravity="left"
                    android:text="Team"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_weight="0.25"
                    android:gravity="center"
                    android:text="Rank"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_weight="0.25"
                    android:gravity="center"
                    android:text="Points"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_weight="0.25"
                    android:gravity="center"
                    android:text="Goals"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_weight="0.25"
                    android:gravity="center"
                    android:text="Goals Against"
                    android:textStyle="bold" />

            </LinearLayout>

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recyclerViewGroupTeam"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layoutManager="android.support.v7.widget.LinearLayoutManager"
                app:layout_constraintTop_toBottomOf="@id/imgFlag"
                tools:ignore="MissingConstraints"
                tools:layout_editor_absoluteX="0dp"
                tools:listitem="@layout/list_item_team_small" />


        </LinearLayout>
    </LinearLayout>

</android.support.v7.widget.CardView>